315089480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{110947}}^1$

素因数の和:111029

約数の個数: 32

約数和(自身を含む): 718943040

約数和(自身を除く): 403853560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 110947, 221894, 443788, 554735, 887576, 1109470, 2218940, 4437880, 7877237, 15754474, 31508948, 39386185, 63017896, 78772370, 157544740, 315089480]

約数ペア:

[(1, 315089480), (2, 157544740), (4, 78772370), (5, 63017896), (8, 39386185), (10, 31508948), (20, 15754474), (40, 7877237), (71, 4437880), (142, 2218940), (284, 1109470), (355, 887576), (568, 554735), (710, 443788), (1420, 221894), (2840, 110947)]