400888970

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{2381}}^1$

素因数の和:2650

約数の個数: 32

約数和(自身を含む): 733179600

約数和(自身を除く): 332290630

約数列:

[1, 2, 5, 10, 113, 149, 226, 298, 565, 745, 1130, 1490, 2381, 4762, 11905, 16837, 23810, 33674, 84185, 168370, 269053, 354769, 538106, 709538, 1345265, 1773845, 2690530, 3547690, 40088897, 80177794, 200444485, 400888970]

約数ペア:

[(1, 400888970), (2, 200444485), (5, 80177794), (10, 40088897), (113, 3547690), (149, 2690530), (226, 1773845), (298, 1345265), (565, 709538), (745, 538106), (1130, 354769), (1490, 269053), (2381, 168370), (4762, 84185), (11905, 33674), (16837, 23810)]