91280440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{32141}}^1$

素因数の和:32223

約数の個数: 32

約数和(自身を含む): 208280160

約数和(自身を除く): 116999720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 32141, 64282, 128564, 160705, 257128, 321410, 642820, 1285640, 2282011, 4564022, 9128044, 11410055, 18256088, 22820110, 45640220, 91280440]

約数ペア:

[(1, 91280440), (2, 45640220), (4, 22820110), (5, 18256088), (8, 11410055), (10, 9128044), (20, 4564022), (40, 2282011), (71, 1285640), (142, 642820), (284, 321410), (355, 257128), (568, 160705), (710, 128564), (1420, 64282), (2840, 32141)]