10987180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{13399}}^1$

素因数の和:13449

約数の個数: 24

約数和(自身を含む): 23637600

約数和(自身を除く): 12650420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 13399, 26798, 53596, 66995, 133990, 267980, 549359, 1098718, 2197436, 2746795, 5493590, 10987180]

約数ペア:

[(1, 10987180), (2, 5493590), (4, 2746795), (5, 2197436), (10, 1098718), (20, 549359), (41, 267980), (82, 133990), (164, 66995), (205, 53596), (410, 26798), (820, 13399)]