16690820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13681}}^1$

素因数の和:13751

約数の個数: 24

約数和(自身を含む): 35627928

約数和(自身を除く): 18937108

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 13681, 27362, 54724, 68405, 136810, 273620, 834541, 1669082, 3338164, 4172705, 8345410, 16690820]

約数ペア:

[(1, 16690820), (2, 8345410), (4, 4172705), (5, 3338164), (10, 1669082), (20, 834541), (61, 273620), (122, 136810), (244, 68405), (305, 54724), (610, 27362), (1220, 13681)]