81309840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338791}}^1$

素因数の和:338807

約数の個数: 40

約数和(自身を含む): 252061248

約数和(自身を除く): 170751408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338791, 677582, 1016373, 1355164, 1693955, 2032746, 2710328, 3387910, 4065492, 5081865, 5420656, 6775820, 8130984, 10163730, 13551640, 16261968, 20327460, 27103280, 40654920, 81309840]

約数ペア:

[(1, 81309840), (2, 40654920), (3, 27103280), (4, 20327460), (5, 16261968), (6, 13551640), (8, 10163730), (10, 8130984), (12, 6775820), (15, 5420656), (16, 5081865), (20, 4065492), (24, 3387910), (30, 2710328), (40, 2032746), (48, 1693955), (60, 1355164), (80, 1016373), (120, 677582), (240, 338791)]