2166580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 4934412

約数和(自身を除く): 2767832

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 641, 676, 845, 1282, 1690, 2564, 3205, 3380, 6410, 8333, 12820, 16666, 33332, 41665, 83330, 108329, 166660, 216658, 433316, 541645, 1083290, 2166580]

約数ペア:

[(1, 2166580), (2, 1083290), (4, 541645), (5, 433316), (10, 216658), (13, 166660), (20, 108329), (26, 83330), (52, 41665), (65, 33332), (130, 16666), (169, 12820), (260, 8333), (338, 6410), (641, 3380), (676, 3205), (845, 2564), (1282, 1690)]