90880120

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{4079}}^1$

素因数の和:4647

約数の個数: 32

約数和(自身を含む): 204897600

約数和(自身を除く): 114017480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4079, 4456, 5570, 8158, 11140, 16316, 20395, 22280, 32632, 40790, 81580, 163160, 2272003, 4544006, 9088012, 11360015, 18176024, 22720030, 45440060, 90880120]

約数ペア:

[(1, 90880120), (2, 45440060), (4, 22720030), (5, 18176024), (8, 11360015), (10, 9088012), (20, 4544006), (40, 2272003), (557, 163160), (1114, 81580), (2228, 40790), (2785, 32632), (4079, 22280), (4456, 20395), (5570, 16316), (8158, 11140)]