121791380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{99829}}^1$

素因数の和:99899

約数の個数: 24

約数和(自身を含む): 259957320

約数和(自身を除く): 138165940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 99829, 199658, 399316, 499145, 998290, 1996580, 6089569, 12179138, 24358276, 30447845, 60895690, 121791380]

約数ペア:

[(1, 121791380), (2, 60895690), (4, 30447845), (5, 24358276), (10, 12179138), (20, 6089569), (61, 1996580), (122, 998290), (244, 499145), (305, 399316), (610, 199658), (1220, 99829)]