20888720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7057}}^1$

素因数の和:7107

約数の個数: 40

約数和(自身を含む): 49885944

約数和(自身を除く): 28997224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 7057, 14114, 28228, 35285, 56456, 70570, 112912, 141140, 261109, 282280, 522218, 564560, 1044436, 1305545, 2088872, 2611090, 4177744, 5222180, 10444360, 20888720]

約数ペア:

[(1, 20888720), (2, 10444360), (4, 5222180), (5, 4177744), (8, 2611090), (10, 2088872), (16, 1305545), (20, 1044436), (37, 564560), (40, 522218), (74, 282280), (80, 261109), (148, 141140), (185, 112912), (296, 70570), (370, 56456), (592, 35285), (740, 28228), (1480, 14114), (2960, 7057)]