80363960

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3607}}^1$

素因数の和:4175

約数の個数: 32

約数和(自身を含む): 181193760

約数和(自身を除く): 100829800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 3607, 4456, 5570, 7214, 11140, 14428, 18035, 22280, 28856, 36070, 72140, 144280, 2009099, 4018198, 8036396, 10045495, 16072792, 20090990, 40181980, 80363960]

約数ペア:

[(1, 80363960), (2, 40181980), (4, 20090990), (5, 16072792), (8, 10045495), (10, 8036396), (20, 4018198), (40, 2009099), (557, 144280), (1114, 72140), (2228, 36070), (2785, 28856), (3607, 22280), (4456, 18035), (5570, 14428), (7214, 11140)]