20730730

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1390

約数の個数: 32

約数和(自身を含む): 39245184

約数和(自身を除く): 18514454

約数列:

[1, 2, 5, 10, 37, 43, 74, 86, 185, 215, 370, 430, 1303, 1591, 2606, 3182, 6515, 7955, 13030, 15910, 48211, 56029, 96422, 112058, 241055, 280145, 482110, 560290, 2073073, 4146146, 10365365, 20730730]

約数ペア:

[(1, 20730730), (2, 10365365), (5, 4146146), (10, 2073073), (37, 560290), (43, 482110), (74, 280145), (86, 241055), (185, 112058), (215, 96422), (370, 56029), (430, 48211), (1303, 15910), (1591, 13030), (2606, 7955), (3182, 6515)]