7972020

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:84

約数の個数: 240

約数和(自身を含む): 30898560

約数和(自身を除く): 22926540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 37, 38, 42, 45, 54, 57, 60, 63, 70, 74, 76, 81, 84, 90, 95, 105, 108, 111, 114, 126, 133, 135, 140, 148, 162, 171, 180, 185, 189, 190, 210, 222, 228, 252, 259, 266, 270, 285, 315, 324, 333, 342, 370, 378, 380, 399, 405, 420, 444, 513, 518, 532, 540, 555, 567, 570, 630, 665, 666, 684, 703, 740, 756, 777, 798, 810, 855, 945, 999, 1026, 1036, 1110, 1134, 1140, 1197, 1260, 1295, 1330, 1332, 1406, 1539, 1554, 1596, 1620, 1665, 1710, 1890, 1995, 1998, 2052, 2109, 2220, 2268, 2331, 2394, 2565, 2590, 2660, 2812, 2835, 2997, 3078, 3108, 3330, 3420, 3515, 3591, 3780, 3885, 3990, 3996, 4218, 4662, 4788, 4921, 4995, 5130, 5180, 5670, 5985, 5994, 6156, 6327, 6660, 6993, 7030, 7182, 7695, 7770, 7980, 8436, 9324, 9842, 9990, 10260, 10545, 10773, 11340, 11655, 11970, 11988, 12654, 13986, 14060, 14364, 14763, 14985, 15390, 15540, 17955, 18981, 19684, 19980, 20979, 21090, 21546, 23310, 23940, 24605, 25308, 27972, 29526, 29970, 30780, 31635, 34965, 35910, 37962, 41958, 42180, 43092, 44289, 46620, 49210, 53865, 56943, 59052, 59940, 63270, 69930, 71820, 73815, 75924, 83916, 88578, 94905, 98420, 104895, 107730, 113886, 126540, 132867, 139860, 147630, 177156, 189810, 209790, 215460, 221445, 227772, 265734, 284715, 295260, 379620, 398601, 419580, 442890, 531468, 569430, 664335, 797202, 885780, 1138860, 1328670, 1594404, 1993005, 2657340, 3986010, 7972020]

約数ペア:

[(1, 7972020), (2, 3986010), (3, 2657340), (4, 1993005), (5, 1594404), (6, 1328670), (7, 1138860), (9, 885780), (10, 797202), (12, 664335), (14, 569430), (15, 531468), (18, 442890), (19, 419580), (20, 398601), (21, 379620), (27, 295260), (28, 284715), (30, 265734), (35, 227772), (36, 221445), (37, 215460), (38, 209790), (42, 189810), (45, 177156), (54, 147630), (57, 139860), (60, 132867), (63, 126540), (70, 113886), (74, 107730), (76, 104895), (81, 98420), (84, 94905), (90, 88578), (95, 83916), (105, 75924), (108, 73815), (111, 71820), (114, 69930), (126, 63270), (133, 59940), (135, 59052), (140, 56943), (148, 53865), (162, 49210), (171, 46620), (180, 44289), (185, 43092), (189, 42180), (190, 41958), (210, 37962), (222, 35910), (228, 34965), (252, 31635), (259, 30780), (266, 29970), (270, 29526), (285, 27972), (315, 25308), (324, 24605), (333, 23940), (342, 23310), (370, 21546), (378, 21090), (380, 20979), (399, 19980), (405, 19684), (420, 18981), (444, 17955), (513, 15540), (518, 15390), (532, 14985), (540, 14763), (555, 14364), (567, 14060), (570, 13986), (630, 12654), (665, 11988), (666, 11970), (684, 11655), (703, 11340), (740, 10773), (756, 10545), (777, 10260), (798, 9990), (810, 9842), (855, 9324), (945, 8436), (999, 7980), (1026, 7770), (1036, 7695), (1110, 7182), (1134, 7030), (1140, 6993), (1197, 6660), (1260, 6327), (1295, 6156), (1330, 5994), (1332, 5985), (1406, 5670), (1539, 5180), (1554, 5130), (1596, 4995), (1620, 4921), (1665, 4788), (1710, 4662), (1890, 4218), (1995, 3996), (1998, 3990), (2052, 3885), (2109, 3780), (2220, 3591), (2268, 3515), (2331, 3420), (2394, 3330), (2565, 3108), (2590, 3078), (2660, 2997), (2812, 2835)]