407187820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1566107}}^1$

素因数の和:1566129

約数の個数: 24

約数和(自身を含む): 920871504

約数和(自身を除く): 513683684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1566107, 3132214, 6264428, 7830535, 15661070, 20359391, 31322140, 40718782, 81437564, 101796955, 203593910, 407187820]

約数ペア:

[(1, 407187820), (2, 203593910), (4, 101796955), (5, 81437564), (10, 40718782), (13, 31322140), (20, 20359391), (26, 15661070), (52, 7830535), (65, 6264428), (130, 3132214), (260, 1566107)]