1312820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1601}}^1$

素因数の和:1651

約数の個数: 24

約数和(自身を含む): 2825928

約数和(自身を除く): 1513108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1601, 3202, 6404, 8005, 16010, 32020, 65641, 131282, 262564, 328205, 656410, 1312820]

約数ペア:

[(1, 1312820), (2, 656410), (4, 328205), (5, 262564), (10, 131282), (20, 65641), (41, 32020), (82, 16010), (164, 8005), (205, 6404), (410, 3202), (820, 1601)]