678244140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:773

約数の個数: 288

約数和(自身を含む): 2539031040

約数和(自身を除く): 1860786900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 41, 42, 45, 57, 60, 63, 70, 76, 82, 84, 90, 95, 105, 114, 123, 126, 133, 140, 164, 171, 180, 190, 205, 210, 228, 246, 252, 266, 285, 287, 315, 342, 369, 380, 399, 410, 420, 492, 532, 570, 574, 615, 630, 665, 684, 691, 738, 779, 798, 820, 855, 861, 1140, 1148, 1197, 1230, 1260, 1330, 1382, 1435, 1476, 1558, 1596, 1710, 1722, 1845, 1995, 2073, 2337, 2394, 2460, 2583, 2660, 2764, 2870, 3116, 3420, 3444, 3455, 3690, 3895, 3990, 4146, 4305, 4674, 4788, 4837, 5166, 5453, 5740, 5985, 6219, 6910, 7011, 7380, 7790, 7980, 8292, 8610, 9348, 9674, 10332, 10365, 10906, 11685, 11970, 12438, 12915, 13129, 13820, 14022, 14511, 15580, 16359, 17220, 19348, 20730, 21812, 23370, 23940, 24185, 24876, 25830, 26258, 27265, 28044, 28331, 29022, 31095, 32718, 35055, 39387, 41460, 43533, 46740, 48370, 49077, 51660, 52516, 54530, 56662, 58044, 62190, 65436, 65645, 70110, 72555, 78774, 81795, 84993, 87066, 91903, 96740, 98154, 109060, 113324, 118161, 124380, 131290, 140220, 141655, 145110, 157548, 163590, 169986, 174132, 183806, 196308, 196935, 198317, 217665, 236322, 245385, 254979, 262580, 275709, 283310, 290220, 327180, 339972, 367612, 393870, 396634, 424965, 435330, 459515, 472644, 490770, 509958, 538289, 551418, 566620, 590805, 594951, 787740, 793268, 827127, 849930, 870660, 919030, 981540, 991585, 1019916, 1076578, 1102836, 1181610, 1189902, 1274895, 1378545, 1614867, 1654254, 1699860, 1784853, 1838060, 1983170, 2153156, 2363220, 2379804, 2549790, 2691445, 2757090, 2974755, 3229734, 3308508, 3569706, 3768023, 3966340, 4135635, 4844601, 5099580, 5382890, 5514180, 5949510, 6459468, 7139412, 7536046, 8074335, 8271270, 8924265, 9689202, 10765780, 11304069, 11899020, 15072092, 16148670, 16542540, 17848530, 18840115, 19378404, 22608138, 24223005, 32297340, 33912207, 35697060, 37680230, 45216276, 48446010, 56520345, 67824414, 75360460, 96892020, 113040690, 135648828, 169561035, 226081380, 339122070, 678244140]

約数ペア:

[(1, 678244140), (2, 339122070), (3, 226081380), (4, 169561035), (5, 135648828), (6, 113040690), (7, 96892020), (9, 75360460), (10, 67824414), (12, 56520345), (14, 48446010), (15, 45216276), (18, 37680230), (19, 35697060), (20, 33912207), (21, 32297340), (28, 24223005), (30, 22608138), (35, 19378404), (36, 18840115), (38, 17848530), (41, 16542540), (42, 16148670), (45, 15072092), (57, 11899020), (60, 11304069), (63, 10765780), (70, 9689202), (76, 8924265), (82, 8271270), (84, 8074335), (90, 7536046), (95, 7139412), (105, 6459468), (114, 5949510), (123, 5514180), (126, 5382890), (133, 5099580), (140, 4844601), (164, 4135635), (171, 3966340), (180, 3768023), (190, 3569706), (205, 3308508), (210, 3229734), (228, 2974755), (246, 2757090), (252, 2691445), (266, 2549790), (285, 2379804), (287, 2363220), (315, 2153156), (342, 1983170), (369, 1838060), (380, 1784853), (399, 1699860), (410, 1654254), (420, 1614867), (492, 1378545), (532, 1274895), (570, 1189902), (574, 1181610), (615, 1102836), (630, 1076578), (665, 1019916), (684, 991585), (691, 981540), (738, 919030), (779, 870660), (798, 849930), (820, 827127), (855, 793268), (861, 787740), (1140, 594951), (1148, 590805), (1197, 566620), (1230, 551418), (1260, 538289), (1330, 509958), (1382, 490770), (1435, 472644), (1476, 459515), (1558, 435330), (1596, 424965), (1710, 396634), (1722, 393870), (1845, 367612), (1995, 339972), (2073, 327180), (2337, 290220), (2394, 283310), (2460, 275709), (2583, 262580), (2660, 254979), (2764, 245385), (2870, 236322), (3116, 217665), (3420, 198317), (3444, 196935), (3455, 196308), (3690, 183806), (3895, 174132), (3990, 169986), (4146, 163590), (4305, 157548), (4674, 145110), (4788, 141655), (4837, 140220), (5166, 131290), (5453, 124380), (5740, 118161), (5985, 113324), (6219, 109060), (6910, 98154), (7011, 96740), (7380, 91903), (7790, 87066), (7980, 84993), (8292, 81795), (8610, 78774), (9348, 72555), (9674, 70110), (10332, 65645), (10365, 65436), (10906, 62190), (11685, 58044), (11970, 56662), (12438, 54530), (12915, 52516), (13129, 51660), (13820, 49077), (14022, 48370), (14511, 46740), (15580, 43533), (16359, 41460), (17220, 39387), (19348, 35055), (20730, 32718), (21812, 31095), (23370, 29022), (23940, 28331), (24185, 28044), (24876, 27265), (25830, 26258)]