15666020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12841}}^1$

素因数の和:12911

約数の個数: 24

約数和(自身を含む): 33440568

約数和(自身を除く): 17774548

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 12841, 25682, 51364, 64205, 128410, 256820, 783301, 1566602, 3133204, 3916505, 7833010, 15666020]

約数ペア:

[(1, 15666020), (2, 7833010), (4, 3916505), (5, 3133204), (10, 1566602), (20, 783301), (61, 256820), (122, 128410), (244, 64205), (305, 51364), (610, 25682), (1220, 12841)]