210432820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809357}}^1$

素因数の和:809379

約数の個数: 24

約数和(自身を含む): 475902504

約数和(自身を除く): 265469684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 809357, 1618714, 3237428, 4046785, 8093570, 10521641, 16187140, 21043282, 42086564, 52608205, 105216410, 210432820]

約数ペア:

[(1, 210432820), (2, 105216410), (4, 52608205), (5, 42086564), (10, 21043282), (13, 16187140), (20, 10521641), (26, 8093570), (52, 4046785), (65, 3237428), (130, 1618714), (260, 809357)]