19663980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{46819}}^1$

素因数の和:46838

約数の個数: 48

約数和(自身を含む): 62926080

約数和(自身を除く): 43262100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 46819, 93638, 140457, 187276, 234095, 280914, 327733, 468190, 561828, 655466, 702285, 936380, 983199, 1310932, 1404570, 1638665, 1966398, 2809140, 3277330, 3932796, 4915995, 6554660, 9831990, 19663980]

約数ペア:

[(1, 19663980), (2, 9831990), (3, 6554660), (4, 4915995), (5, 3932796), (6, 3277330), (7, 2809140), (10, 1966398), (12, 1638665), (14, 1404570), (15, 1310932), (20, 983199), (21, 936380), (28, 702285), (30, 655466), (35, 561828), (42, 468190), (60, 327733), (70, 280914), (84, 234095), (105, 187276), (140, 140457), (210, 93638), (420, 46819)]