202609180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2351}}^1$

素因数の和:2530

約数の個数: 48

約数和(自身を含む): 442552320

約数和(自身を除く): 239943140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2351, 2780, 4309, 4702, 8618, 9404, 11755, 17236, 21545, 23510, 43090, 47020, 72881, 86180, 145762, 291524, 326789, 364405, 653578, 728810, 1307156, 1457620, 1633945, 3267890, 6535780, 10130459, 20260918, 40521836, 50652295, 101304590, 202609180]

約数ペア:

[(1, 202609180), (2, 101304590), (4, 50652295), (5, 40521836), (10, 20260918), (20, 10130459), (31, 6535780), (62, 3267890), (124, 1633945), (139, 1457620), (155, 1307156), (278, 728810), (310, 653578), (556, 364405), (620, 326789), (695, 291524), (1390, 145762), (2351, 86180), (2780, 72881), (4309, 47020), (4702, 43090), (8618, 23510), (9404, 21545), (11755, 17236)]