72684620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{379}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 157301760

約数和(自身を除く): 84617140

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 223, 379, 430, 446, 758, 860, 892, 1115, 1516, 1895, 2230, 3790, 4460, 7580, 9589, 16297, 19178, 32594, 38356, 47945, 65188, 81485, 84517, 95890, 162970, 169034, 191780, 325940, 338068, 422585, 845170, 1690340, 3634231, 7268462, 14536924, 18171155, 36342310, 72684620]

約数ペア:

[(1, 72684620), (2, 36342310), (4, 18171155), (5, 14536924), (10, 7268462), (20, 3634231), (43, 1690340), (86, 845170), (172, 422585), (215, 338068), (223, 325940), (379, 191780), (430, 169034), (446, 162970), (758, 95890), (860, 84517), (892, 81485), (1115, 65188), (1516, 47945), (1895, 38356), (2230, 32594), (3790, 19178), (4460, 16297), (7580, 9589)]