15405580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 19188980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 571, 710, 1142, 1349, 1420, 2284, 2698, 2855, 5396, 5710, 6745, 10849, 11420, 13490, 21698, 26980, 40541, 43396, 54245, 81082, 108490, 162164, 202705, 216980, 405410, 770279, 810820, 1540558, 3081116, 3851395, 7702790, 15405580]

約数ペア:

[(1, 15405580), (2, 7702790), (4, 3851395), (5, 3081116), (10, 1540558), (19, 810820), (20, 770279), (38, 405410), (71, 216980), (76, 202705), (95, 162164), (142, 108490), (190, 81082), (284, 54245), (355, 43396), (380, 40541), (571, 26980), (710, 21698), (1142, 13490), (1349, 11420), (1420, 10849), (2284, 6745), (2698, 5710), (2855, 5396)]