61318220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^2$

素因数の和:482

約数の個数: 36

約数和(自身を含む): 131063520

約数和(自身を除く): 69745300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 197, 316, 394, 395, 788, 790, 985, 1580, 1970, 3940, 15563, 31126, 38809, 62252, 77618, 77815, 155236, 155630, 194045, 311260, 388090, 776180, 3065911, 6131822, 12263644, 15329555, 30659110, 61318220]

約数ペア:

[(1, 61318220), (2, 30659110), (4, 15329555), (5, 12263644), (10, 6131822), (20, 3065911), (79, 776180), (158, 388090), (197, 311260), (316, 194045), (394, 155630), (395, 155236), (788, 77815), (790, 77618), (985, 62252), (1580, 38809), (1970, 31126), (3940, 15563)]