20272910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2657}}^1$

素因数の和:2780

約数の個数: 32

約数和(自身を含む): 42102720

約数和(自身を除く): 21829810

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2657, 3815, 5314, 7630, 13285, 18599, 26570, 37198, 92995, 185990, 289613, 579226, 1448065, 2027291, 2896130, 4054582, 10136455, 20272910]

約数ペア:

[(1, 20272910), (2, 10136455), (5, 4054582), (7, 2896130), (10, 2027291), (14, 1448065), (35, 579226), (70, 289613), (109, 185990), (218, 92995), (545, 37198), (763, 26570), (1090, 18599), (1526, 13285), (2657, 7630), (3815, 5314)]