155492840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54751}}^1$

素因数の和:54833

約数の個数: 32

約数和(自身を含む): 354792960

約数和(自身を除く): 199300120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 54751, 109502, 219004, 273755, 438008, 547510, 1095020, 2190040, 3887321, 7774642, 15549284, 19436605, 31098568, 38873210, 77746420, 155492840]

約数ペア:

[(1, 155492840), (2, 77746420), (4, 38873210), (5, 31098568), (8, 19436605), (10, 15549284), (20, 7774642), (40, 3887321), (71, 2190040), (142, 1095020), (284, 547510), (355, 438008), (568, 273755), (710, 219004), (1420, 109502), (2840, 54751)]