15617620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 35058240

約数和(自身を除く): 19440620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 563, 730, 1126, 1387, 1460, 2252, 2774, 2815, 5548, 5630, 6935, 10697, 11260, 13870, 21394, 27740, 41099, 42788, 53485, 82198, 106970, 164396, 205495, 213940, 410990, 780881, 821980, 1561762, 3123524, 3904405, 7808810, 15617620]

約数ペア:

[(1, 15617620), (2, 7808810), (4, 3904405), (5, 3123524), (10, 1561762), (19, 821980), (20, 780881), (38, 410990), (73, 213940), (76, 205495), (95, 164396), (146, 106970), (190, 82198), (292, 53485), (365, 42788), (380, 41099), (563, 27740), (730, 21394), (1126, 13870), (1387, 11260), (1460, 10697), (2252, 6935), (2774, 5630), (2815, 5548)]