80490920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{118369}}^1$

素因数の和:118397

約数の個数: 32

約数和(自身を含む): 191759400

約数和(自身を除く): 111268480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 118369, 236738, 473476, 591845, 946952, 1183690, 2012273, 2367380, 4024546, 4734760, 8049092, 10061365, 16098184, 20122730, 40245460, 80490920]

約数ペア:

[(1, 80490920), (2, 40245460), (4, 20122730), (5, 16098184), (8, 10061365), (10, 8049092), (17, 4734760), (20, 4024546), (34, 2367380), (40, 2012273), (68, 1183690), (85, 946952), (136, 591845), (170, 473476), (340, 236738), (680, 118369)]