15902770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 31071600

約数和(自身を除く): 15168830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 821, 1490, 1642, 1937, 3874, 4105, 8210, 9685, 10673, 19370, 21346, 53365, 106730, 122329, 244658, 611645, 1223290, 1590277, 3180554, 7951385, 15902770]

約数ペア:

[(1, 15902770), (2, 7951385), (5, 3180554), (10, 1590277), (13, 1223290), (26, 611645), (65, 244658), (130, 122329), (149, 106730), (298, 53365), (745, 21346), (821, 19370), (1490, 10673), (1642, 9685), (1937, 8210), (3874, 4105)]