15687920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10321}}^1$

素因数の和:10353

約数の個数: 40

約数和(自身を含む): 38397840

約数和(自身を除く): 22709920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 10321, 20642, 41284, 51605, 82568, 103210, 165136, 196099, 206420, 392198, 412840, 784396, 825680, 980495, 1568792, 1960990, 3137584, 3921980, 7843960, 15687920]

約数ペア:

[(1, 15687920), (2, 7843960), (4, 3921980), (5, 3137584), (8, 1960990), (10, 1568792), (16, 980495), (19, 825680), (20, 784396), (38, 412840), (40, 392198), (76, 206420), (80, 196099), (95, 165136), (152, 103210), (190, 82568), (304, 51605), (380, 41284), (760, 20642), (1520, 10321)]