20611640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73613}}^1$

素因数の和:73631

約数の個数: 32

約数和(自身を含む): 53002080

約数和(自身を除く): 32390440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73613, 147226, 294452, 368065, 515291, 588904, 736130, 1030582, 1472260, 2061164, 2576455, 2944520, 4122328, 5152910, 10305820, 20611640]

約数ペア:

[(1, 20611640), (2, 10305820), (4, 5152910), (5, 4122328), (7, 2944520), (8, 2576455), (10, 2061164), (14, 1472260), (20, 1030582), (28, 736130), (35, 588904), (40, 515291), (56, 368065), (70, 294452), (140, 147226), (280, 73613)]