8540740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 19559232

約数和(自身を除く): 11018492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 307, 428, 535, 614, 1070, 1228, 1391, 1535, 2140, 2782, 3070, 3991, 5564, 6140, 6955, 7982, 13910, 15964, 19955, 27820, 32849, 39910, 65698, 79820, 131396, 164245, 328490, 427037, 656980, 854074, 1708148, 2135185, 4270370, 8540740]

約数ペア:

[(1, 8540740), (2, 4270370), (4, 2135185), (5, 1708148), (10, 854074), (13, 656980), (20, 427037), (26, 328490), (52, 164245), (65, 131396), (107, 79820), (130, 65698), (214, 39910), (260, 32849), (307, 27820), (428, 19955), (535, 15964), (614, 13910), (1070, 7982), (1228, 6955), (1391, 6140), (1535, 5564), (2140, 3991), (2782, 3070)]