309888940

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137119}}^1$

素因数の和:137241

約数の個数: 24

約数和(自身を含む): 656530560

約数和(自身を除く): 346641620

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 137119, 274238, 548476, 685595, 1371190, 2742380, 15494447, 30988894, 61977788, 77472235, 154944470, 309888940]

約数ペア:

[(1, 309888940), (2, 154944470), (4, 77472235), (5, 61977788), (10, 30988894), (20, 15494447), (113, 2742380), (226, 1371190), (452, 685595), (565, 548476), (1130, 274238), (2260, 137119)]