16822580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13789}}^1$

素因数の和:13859

約数の個数: 24

約数和(自身を含む): 35909160

約数和(自身を除く): 19086580

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 13789, 27578, 55156, 68945, 137890, 275780, 841129, 1682258, 3364516, 4205645, 8411290, 16822580]

約数ペア:

[(1, 16822580), (2, 8411290), (4, 4205645), (5, 3364516), (10, 1682258), (20, 841129), (61, 275780), (122, 137890), (244, 68945), (305, 55156), (610, 27578), (1220, 13789)]