408096100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 908145000

約数和(自身を除く): 500048900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 149, 244, 298, 305, 449, 596, 610, 745, 898, 1220, 1490, 1525, 1796, 2245, 2980, 3050, 3725, 4490, 6100, 7450, 8980, 9089, 11225, 14900, 18178, 22450, 27389, 36356, 44900, 45445, 54778, 66901, 90890, 109556, 133802, 136945, 181780, 227225, 267604, 273890, 334505, 454450, 547780, 669010, 684725, 908900, 1338020, 1369450, 1672525, 2738900, 3345050, 4080961, 6690100, 8161922, 16323844, 20404805, 40809610, 81619220, 102024025, 204048050, 408096100]

約数ペア:

[(1, 408096100), (2, 204048050), (4, 102024025), (5, 81619220), (10, 40809610), (20, 20404805), (25, 16323844), (50, 8161922), (61, 6690100), (100, 4080961), (122, 3345050), (149, 2738900), (244, 1672525), (298, 1369450), (305, 1338020), (449, 908900), (596, 684725), (610, 669010), (745, 547780), (898, 454450), (1220, 334505), (1490, 273890), (1525, 267604), (1796, 227225), (2245, 181780), (2980, 136945), (3050, 133802), (3725, 109556), (4490, 90890), (6100, 66901), (7450, 54778), (8980, 45445), (9089, 44900), (11225, 36356), (14900, 27389), (18178, 22450)]