20310900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:953

約数の個数: 72

約数和(自身を含む): 59579520

約数和(自身を除く): 39268620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 79, 100, 150, 158, 237, 300, 316, 395, 474, 790, 857, 948, 1185, 1580, 1714, 1975, 2370, 2571, 3428, 3950, 4285, 4740, 5142, 5925, 7900, 8570, 10284, 11850, 12855, 17140, 21425, 23700, 25710, 42850, 51420, 64275, 67703, 85700, 128550, 135406, 203109, 257100, 270812, 338515, 406218, 677030, 812436, 1015545, 1354060, 1692575, 2031090, 3385150, 4062180, 5077725, 6770300, 10155450, 20310900]

約数ペア:

[(1, 20310900), (2, 10155450), (3, 6770300), (4, 5077725), (5, 4062180), (6, 3385150), (10, 2031090), (12, 1692575), (15, 1354060), (20, 1015545), (25, 812436), (30, 677030), (50, 406218), (60, 338515), (75, 270812), (79, 257100), (100, 203109), (150, 135406), (158, 128550), (237, 85700), (300, 67703), (316, 64275), (395, 51420), (474, 42850), (790, 25710), (857, 23700), (948, 21425), (1185, 17140), (1580, 12855), (1714, 11850), (1975, 10284), (2370, 8570), (2571, 7900), (3428, 5925), (3950, 5142), (4285, 4740)]