639647525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2243}}^1$

素因数の和:2342

約数の個数: 48

約数和(自身を含む): 931601088

約数和(自身を除く): 291953563

約数列:

[1, 5, 11, 17, 25, 55, 61, 85, 187, 275, 305, 425, 671, 935, 1037, 1525, 2243, 3355, 4675, 5185, 11215, 11407, 16775, 24673, 25925, 38131, 56075, 57035, 123365, 136823, 190655, 285175, 419441, 616825, 684115, 953275, 1505053, 2097205, 2325991, 3420575, 7525265, 10486025, 11629955, 25585901, 37626325, 58149775, 127929505, 639647525]

約数ペア:

[(1, 639647525), (5, 127929505), (11, 58149775), (17, 37626325), (25, 25585901), (55, 11629955), (61, 10486025), (85, 7525265), (187, 3420575), (275, 2325991), (305, 2097205), (425, 1505053), (671, 953275), (935, 684115), (1037, 616825), (1525, 419441), (2243, 285175), (3355, 190655), (4675, 136823), (5185, 123365), (11215, 57035), (11407, 56075), (16775, 38131), (24673, 25925)]