20558730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15937}}^1$

素因数の和:15990

約数の個数: 32

約数和(自身を含む): 50491584

約数和(自身を除く): 29932854

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 15937, 31874, 47811, 79685, 95622, 159370, 239055, 478110, 685291, 1370582, 2055873, 3426455, 4111746, 6852910, 10279365, 20558730]

約数ペア:

[(1, 20558730), (2, 10279365), (3, 6852910), (5, 4111746), (6, 3426455), (10, 2055873), (15, 1370582), (30, 685291), (43, 478110), (86, 239055), (129, 159370), (215, 95622), (258, 79685), (430, 47811), (645, 31874), (1290, 15937)]