9002090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 17003520

約数和(自身を除く): 8001430

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 409, 710, 818, 2045, 2201, 4090, 4402, 11005, 12679, 22010, 25358, 29039, 58078, 63395, 126790, 145195, 290390, 900209, 1800418, 4501045, 9002090]

約数ペア:

[(1, 9002090), (2, 4501045), (5, 1800418), (10, 900209), (31, 290390), (62, 145195), (71, 126790), (142, 63395), (155, 58078), (310, 29039), (355, 25358), (409, 22010), (710, 12679), (818, 11005), (2045, 4402), (2201, 4090)]