2011270820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179899}}^1$

素因数の和:179964

約数の個数: 48

約数和(自身を含む): 4654372800

約数和(自身を除く): 2643101980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 179899, 359798, 719596, 899495, 1798990, 2338687, 3597980, 4677374, 7735657, 9354748, 11693435, 15471314, 23386870, 30942628, 38678285, 46773740, 77356570, 100563541, 154713140, 201127082, 402254164, 502817705, 1005635410, 2011270820]

約数ペア:

[(1, 2011270820), (2, 1005635410), (4, 502817705), (5, 402254164), (10, 201127082), (13, 154713140), (20, 100563541), (26, 77356570), (43, 46773740), (52, 38678285), (65, 30942628), (86, 23386870), (130, 15471314), (172, 11693435), (215, 9354748), (260, 7735657), (430, 4677374), (559, 3597980), (860, 2338687), (1118, 1798990), (2236, 899495), (2795, 719596), (5590, 359798), (11180, 179899)]