201231420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257989}}^1$

素因数の和:258014

約数の個数: 48

約数和(自身を含む): 606792480

約数和(自身を除く): 405561060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 257989, 515978, 773967, 1031956, 1289945, 1547934, 2579890, 3095868, 3353857, 3869835, 5159780, 6707714, 7739670, 10061571, 13415428, 15479340, 16769285, 20123142, 33538570, 40246284, 50307855, 67077140, 100615710, 201231420]

約数ペア:

[(1, 201231420), (2, 100615710), (3, 67077140), (4, 50307855), (5, 40246284), (6, 33538570), (10, 20123142), (12, 16769285), (13, 15479340), (15, 13415428), (20, 10061571), (26, 7739670), (30, 6707714), (39, 5159780), (52, 3869835), (60, 3353857), (65, 3095868), (78, 2579890), (130, 1547934), (156, 1289945), (195, 1031956), (260, 773967), (390, 515978), (780, 257989)]