8421890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 15882480

約数和(自身を除く): 7460590

約数列:

[1, 2, 5, 10, 29, 58, 113, 145, 226, 257, 290, 514, 565, 1130, 1285, 2570, 3277, 6554, 7453, 14906, 16385, 29041, 32770, 37265, 58082, 74530, 145205, 290410, 842189, 1684378, 4210945, 8421890]

約数ペア:

[(1, 8421890), (2, 4210945), (5, 1684378), (10, 842189), (29, 290410), (58, 145205), (113, 74530), (145, 58082), (226, 37265), (257, 32770), (290, 29041), (514, 16385), (565, 14906), (1130, 7453), (1285, 6554), (2570, 3277)]