2809820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 6477408

約数和(自身を除く): 3667588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 107, 130, 202, 214, 260, 404, 428, 505, 535, 1010, 1070, 1313, 1391, 2020, 2140, 2626, 2782, 5252, 5564, 6565, 6955, 10807, 13130, 13910, 21614, 26260, 27820, 43228, 54035, 108070, 140491, 216140, 280982, 561964, 702455, 1404910, 2809820]

約数ペア:

[(1, 2809820), (2, 1404910), (4, 702455), (5, 561964), (10, 280982), (13, 216140), (20, 140491), (26, 108070), (52, 54035), (65, 43228), (101, 27820), (107, 26260), (130, 21614), (202, 13910), (214, 13130), (260, 10807), (404, 6955), (428, 6565), (505, 5564), (535, 5252), (1010, 2782), (1070, 2626), (1313, 2140), (1391, 2020)]