28153540

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5233}}^1$

素因数の和:5511

約数の個数: 24

約数和(自身を含む): 59353560

約数和(自身を除く): 31200020

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5233, 5380, 10466, 20932, 26165, 52330, 104660, 1407677, 2815354, 5630708, 7038385, 14076770, 28153540]

約数ペア:

[(1, 28153540), (2, 14076770), (4, 7038385), (5, 5630708), (10, 2815354), (20, 1407677), (269, 104660), (538, 52330), (1076, 26165), (1345, 20932), (2690, 10466), (5233, 5380)]