15661916225

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1\times {\mathrm{419}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 20045383680

約数和(自身を除く): 4383467455

約数列:

[1, 5, 25, 61, 127, 193, 305, 419, 635, 965, 1525, 2095, 3175, 4825, 7747, 10475, 11773, 24511, 25559, 38735, 53213, 58865, 80867, 122555, 127795, 193675, 266065, 294325, 404335, 612775, 638975, 1330325, 1495171, 2021675, 3245993, 4932887, 7475855, 10270109, 16229965, 24664435, 37379275, 51350545, 81149825, 123322175, 256752725, 626476649, 3132383245, 15661916225]

約数ペア:

[(1, 15661916225), (5, 3132383245), (25, 626476649), (61, 256752725), (127, 123322175), (193, 81149825), (305, 51350545), (419, 37379275), (635, 24664435), (965, 16229965), (1525, 10270109), (2095, 7475855), (3175, 4932887), (4825, 3245993), (7747, 2021675), (10475, 1495171), (11773, 1330325), (24511, 638975), (25559, 612775), (38735, 404335), (53213, 294325), (58865, 266065), (80867, 193675), (122555, 127795)]