1818180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:75

約数の個数: 192

約数和(自身を含む): 7150080

約数和(自身を除く): 5331900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 37, 39, 42, 45, 52, 54, 60, 63, 65, 70, 74, 78, 84, 90, 91, 105, 108, 111, 117, 126, 130, 135, 140, 148, 156, 180, 182, 185, 189, 195, 210, 222, 234, 252, 259, 260, 270, 273, 315, 333, 351, 364, 370, 378, 390, 420, 444, 455, 468, 481, 518, 540, 546, 555, 585, 630, 666, 702, 740, 756, 777, 780, 819, 910, 945, 962, 999, 1036, 1092, 1110, 1170, 1260, 1295, 1332, 1365, 1404, 1443, 1554, 1638, 1665, 1755, 1820, 1890, 1924, 1998, 2220, 2331, 2340, 2405, 2457, 2590, 2730, 2886, 3108, 3276, 3330, 3367, 3510, 3780, 3885, 3996, 4095, 4329, 4662, 4810, 4914, 4995, 5180, 5460, 5772, 6660, 6734, 6993, 7020, 7215, 7770, 8190, 8658, 9324, 9620, 9828, 9990, 10101, 11655, 12285, 12987, 13468, 13986, 14430, 15540, 16380, 16835, 17316, 19980, 20202, 21645, 23310, 24570, 25974, 27972, 28860, 30303, 33670, 34965, 40404, 43290, 46620, 49140, 50505, 51948, 60606, 64935, 67340, 69930, 86580, 90909, 101010, 121212, 129870, 139860, 151515, 181818, 202020, 259740, 303030, 363636, 454545, 606060, 909090, 1818180]

約数ペア:

[(1, 1818180), (2, 909090), (3, 606060), (4, 454545), (5, 363636), (6, 303030), (7, 259740), (9, 202020), (10, 181818), (12, 151515), (13, 139860), (14, 129870), (15, 121212), (18, 101010), (20, 90909), (21, 86580), (26, 69930), (27, 67340), (28, 64935), (30, 60606), (35, 51948), (36, 50505), (37, 49140), (39, 46620), (42, 43290), (45, 40404), (52, 34965), (54, 33670), (60, 30303), (63, 28860), (65, 27972), (70, 25974), (74, 24570), (78, 23310), (84, 21645), (90, 20202), (91, 19980), (105, 17316), (108, 16835), (111, 16380), (117, 15540), (126, 14430), (130, 13986), (135, 13468), (140, 12987), (148, 12285), (156, 11655), (180, 10101), (182, 9990), (185, 9828), (189, 9620), (195, 9324), (210, 8658), (222, 8190), (234, 7770), (252, 7215), (259, 7020), (260, 6993), (270, 6734), (273, 6660), (315, 5772), (333, 5460), (351, 5180), (364, 4995), (370, 4914), (378, 4810), (390, 4662), (420, 4329), (444, 4095), (455, 3996), (468, 3885), (481, 3780), (518, 3510), (540, 3367), (546, 3330), (555, 3276), (585, 3108), (630, 2886), (666, 2730), (702, 2590), (740, 2457), (756, 2405), (777, 2340), (780, 2331), (819, 2220), (910, 1998), (945, 1924), (962, 1890), (999, 1820), (1036, 1755), (1092, 1665), (1110, 1638), (1170, 1554), (1260, 1443), (1295, 1404), (1332, 1365)]