20090228

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 36054984

約数和(自身を除く): 15964756

約数列:

[1, 2, 4, 61, 122, 137, 244, 274, 548, 601, 1202, 2404, 8357, 16714, 33428, 36661, 73322, 82337, 146644, 164674, 329348, 5022557, 10045114, 20090228]

約数ペア:

[(1, 20090228), (2, 10045114), (4, 5022557), (61, 329348), (122, 164674), (137, 146644), (244, 82337), (274, 73322), (548, 36661), (601, 33428), (1202, 16714), (2404, 8357)]