872070520

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{32983}}^1$

素因数の和:33655

約数の個数: 32

約数和(自身を含む): 1965186720

約数和(自身を除く): 1093116200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 26440, 32983, 65966, 131932, 164915, 263864, 329830, 659660, 1319320, 21801763, 43603526, 87207052, 109008815, 174414104, 218017630, 436035260, 872070520]

約数ペア:

[(1, 872070520), (2, 436035260), (4, 218017630), (5, 174414104), (8, 109008815), (10, 87207052), (20, 43603526), (40, 21801763), (661, 1319320), (1322, 659660), (2644, 329830), (3305, 263864), (5288, 164915), (6610, 131932), (13220, 65966), (26440, 32983)]