1247920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 3057840

約数和(自身を除く): 1809920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 821, 1520, 1642, 3284, 4105, 6568, 8210, 13136, 15599, 16420, 31198, 32840, 62396, 65680, 77995, 124792, 155990, 249584, 311980, 623960, 1247920]

約数ペア:

[(1, 1247920), (2, 623960), (4, 311980), (5, 249584), (8, 155990), (10, 124792), (16, 77995), (19, 65680), (20, 62396), (38, 32840), (40, 31198), (76, 16420), (80, 15599), (95, 13136), (152, 8210), (190, 6568), (304, 4105), (380, 3284), (760, 1642), (821, 1520)]