155266960

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{31817}}^1$

素因数の和:31891

約数の個数: 40

約数和(自身を含む): 366925176

約数和(自身を除く): 211658216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 31817, 63634, 127268, 159085, 254536, 318170, 509072, 636340, 1272680, 1940837, 2545360, 3881674, 7763348, 9704185, 15526696, 19408370, 31053392, 38816740, 77633480, 155266960]

約数ペア:

[(1, 155266960), (2, 77633480), (4, 38816740), (5, 31053392), (8, 19408370), (10, 15526696), (16, 9704185), (20, 7763348), (40, 3881674), (61, 2545360), (80, 1940837), (122, 1272680), (244, 636340), (305, 509072), (488, 318170), (610, 254536), (976, 159085), (1220, 127268), (2440, 63634), (4880, 31817)]