90189890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1787}}^1$

素因数の和:1911

約数の個数: 48

約数和(自身を含む): 190786752

約数和(自身を除く): 100596862

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 103, 206, 245, 490, 515, 721, 1030, 1442, 1787, 3574, 3605, 5047, 7210, 8935, 10094, 12509, 17870, 25018, 25235, 50470, 62545, 87563, 125090, 175126, 184061, 368122, 437815, 875630, 920305, 1288427, 1840610, 2576854, 6442135, 9018989, 12884270, 18037978, 45094945, 90189890]

約数ペア:

[(1, 90189890), (2, 45094945), (5, 18037978), (7, 12884270), (10, 9018989), (14, 6442135), (35, 2576854), (49, 1840610), (70, 1288427), (98, 920305), (103, 875630), (206, 437815), (245, 368122), (490, 184061), (515, 175126), (721, 125090), (1030, 87563), (1442, 62545), (1787, 50470), (3574, 25235), (3605, 25018), (5047, 17870), (7210, 12509), (8935, 10094)]