18459880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14887}}^1$

素因数の和:14929

約数の個数: 32

約数和(自身を含む): 42877440

約数和(自身を除く): 24417560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 14887, 29774, 59548, 74435, 119096, 148870, 297740, 461497, 595480, 922994, 1845988, 2307485, 3691976, 4614970, 9229940, 18459880]

約数ペア:

[(1, 18459880), (2, 9229940), (4, 4614970), (5, 3691976), (8, 2307485), (10, 1845988), (20, 922994), (31, 595480), (40, 461497), (62, 297740), (124, 148870), (155, 119096), (248, 74435), (310, 59548), (620, 29774), (1240, 14887)]