20454590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6841}}^1$

素因数の和:6884

約数の個数: 32

約数和(自身を含む): 41380416

約数和(自身を除く): 20925826

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6841, 13682, 34205, 68410, 88933, 157343, 177866, 314686, 444665, 786715, 889330, 1573430, 2045459, 4090918, 10227295, 20454590]

約数ペア:

[(1, 20454590), (2, 10227295), (5, 4090918), (10, 2045459), (13, 1573430), (23, 889330), (26, 786715), (46, 444665), (65, 314686), (115, 177866), (130, 157343), (230, 88933), (299, 68410), (598, 34205), (1495, 13682), (2990, 6841)]