664115870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{76423}}^1$

素因数の和:76520

約数の個数: 32

約数和(自身を含む): 1320606720

約数和(自身を除く): 656490850

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 4345, 8690, 76423, 152846, 382115, 764230, 840653, 1681306, 4203265, 6037417, 8406530, 12074834, 30187085, 60374170, 66411587, 132823174, 332057935, 664115870]

約数ペア:

[(1, 664115870), (2, 332057935), (5, 132823174), (10, 66411587), (11, 60374170), (22, 30187085), (55, 12074834), (79, 8406530), (110, 6037417), (158, 4203265), (395, 1681306), (790, 840653), (869, 764230), (1738, 382115), (4345, 152846), (8690, 76423)]