122689940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197887}}^1$

素因数の和:197927

約数の個数: 24

約数和(自身を含む): 265961472

約数和(自身を除く): 143271532

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 197887, 395774, 791548, 989435, 1978870, 3957740, 6134497, 12268994, 24537988, 30672485, 61344970, 122689940]

約数ペア:

[(1, 122689940), (2, 61344970), (4, 30672485), (5, 24537988), (10, 12268994), (20, 6134497), (31, 3957740), (62, 1978870), (124, 989435), (155, 791548), (310, 395774), (620, 197887)]