20095740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 51452100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 41, 42, 45, 60, 63, 70, 82, 84, 90, 105, 123, 126, 140, 164, 180, 205, 210, 246, 252, 287, 315, 369, 389, 410, 420, 492, 574, 615, 630, 738, 778, 820, 861, 1148, 1167, 1230, 1260, 1435, 1476, 1556, 1722, 1845, 1945, 2334, 2460, 2583, 2723, 2870, 3444, 3501, 3690, 3890, 4305, 4668, 5166, 5446, 5740, 5835, 7002, 7380, 7780, 8169, 8610, 10332, 10892, 11670, 12915, 13615, 14004, 15949, 16338, 17220, 17505, 23340, 24507, 25830, 27230, 31898, 32676, 35010, 40845, 47847, 49014, 51660, 54460, 63796, 70020, 79745, 81690, 95694, 98028, 111643, 122535, 143541, 159490, 163380, 191388, 223286, 239235, 245070, 287082, 318980, 334929, 446572, 478470, 490140, 558215, 574164, 669858, 717705, 956940, 1004787, 1116430, 1339716, 1435410, 1674645, 2009574, 2232860, 2870820, 3349290, 4019148, 5023935, 6698580, 10047870, 20095740]

約数ペア:

[(1, 20095740), (2, 10047870), (3, 6698580), (4, 5023935), (5, 4019148), (6, 3349290), (7, 2870820), (9, 2232860), (10, 2009574), (12, 1674645), (14, 1435410), (15, 1339716), (18, 1116430), (20, 1004787), (21, 956940), (28, 717705), (30, 669858), (35, 574164), (36, 558215), (41, 490140), (42, 478470), (45, 446572), (60, 334929), (63, 318980), (70, 287082), (82, 245070), (84, 239235), (90, 223286), (105, 191388), (123, 163380), (126, 159490), (140, 143541), (164, 122535), (180, 111643), (205, 98028), (210, 95694), (246, 81690), (252, 79745), (287, 70020), (315, 63796), (369, 54460), (389, 51660), (410, 49014), (420, 47847), (492, 40845), (574, 35010), (615, 32676), (630, 31898), (738, 27230), (778, 25830), (820, 24507), (861, 23340), (1148, 17505), (1167, 17220), (1230, 16338), (1260, 15949), (1435, 14004), (1476, 13615), (1556, 12915), (1722, 11670), (1845, 10892), (1945, 10332), (2334, 8610), (2460, 8169), (2583, 7780), (2723, 7380), (2870, 7002), (3444, 5835), (3501, 5740), (3690, 5446), (3890, 5166), (4305, 4668)]