18890710

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{40193}}^1$

素因数の和:40247

約数の個数: 16

約数和(自身を含む): 34727616

約数和(自身を除く): 15836906

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 40193, 80386, 200965, 401930, 1889071, 3778142, 9445355, 18890710]

約数ペア:

[(1, 18890710), (2, 9445355), (5, 3778142), (10, 1889071), (47, 401930), (94, 200965), (235, 80386), (470, 40193)]