28432820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109357}}^1$

素因数の和:109379

約数の個数: 24

約数和(自身を含む): 64302504

約数和(自身を除く): 35869684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109357, 218714, 437428, 546785, 1093570, 1421641, 2187140, 2843282, 5686564, 7108205, 14216410, 28432820]

約数ペア:

[(1, 28432820), (2, 14216410), (4, 7108205), (5, 5686564), (10, 2843282), (13, 2187140), (20, 1421641), (26, 1093570), (52, 546785), (65, 437428), (130, 218714), (260, 109357)]