89717620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{1031}}^1$

素因数の和:1288

約数の個数: 48

約数和(自身を含む): 199382400

約数和(自身を除く): 109664780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 229, 380, 458, 916, 1031, 1145, 2062, 2290, 4124, 4351, 4580, 5155, 8702, 10310, 17404, 19589, 20620, 21755, 39178, 43510, 78356, 87020, 97945, 195890, 236099, 391780, 472198, 944396, 1180495, 2360990, 4485881, 4721980, 8971762, 17943524, 22429405, 44858810, 89717620]

約数ペア:

[(1, 89717620), (2, 44858810), (4, 22429405), (5, 17943524), (10, 8971762), (19, 4721980), (20, 4485881), (38, 2360990), (76, 1180495), (95, 944396), (190, 472198), (229, 391780), (380, 236099), (458, 195890), (916, 97945), (1031, 87020), (1145, 78356), (2062, 43510), (2290, 39178), (4124, 21755), (4351, 20620), (4580, 19589), (5155, 17404), (8702, 10310)]