19953100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3271}}^1$

素因数の和:3346

約数の個数: 36

約数和(自身を含む): 44021488

約数和(自身を除く): 24068388

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3271, 6100, 6542, 13084, 16355, 32710, 65420, 81775, 163550, 199531, 327100, 399062, 798124, 997655, 1995310, 3990620, 4988275, 9976550, 19953100]

約数ペア:

[(1, 19953100), (2, 9976550), (4, 4988275), (5, 3990620), (10, 1995310), (20, 997655), (25, 798124), (50, 399062), (61, 327100), (100, 199531), (122, 163550), (244, 81775), (305, 65420), (610, 32710), (1220, 16355), (1525, 13084), (3050, 6542), (3271, 6100)]