128575190

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{1609}}^1$

素因数の和:1808

約数の個数: 32

約数和(自身を含む): 237172320

約数和(自身を除く): 108597130

約数列:

[1, 2, 5, 10, 61, 122, 131, 262, 305, 610, 655, 1310, 1609, 3218, 7991, 8045, 15982, 16090, 39955, 79910, 98149, 196298, 210779, 421558, 490745, 981490, 1053895, 2107790, 12857519, 25715038, 64287595, 128575190]

約数ペア:

[(1, 128575190), (2, 64287595), (5, 25715038), (10, 12857519), (61, 2107790), (122, 1053895), (131, 981490), (262, 490745), (305, 421558), (610, 210779), (655, 196298), (1310, 98149), (1609, 79910), (3218, 39955), (7991, 16090), (8045, 15982)]