28530140

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5303}}^1$

素因数の和:5581

約数の個数: 24

約数和(自身を含む): 60147360

約数和(自身を除く): 31617220

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5303, 5380, 10606, 21212, 26515, 53030, 106060, 1426507, 2853014, 5706028, 7132535, 14265070, 28530140]

約数ペア:

[(1, 28530140), (2, 14265070), (4, 7132535), (5, 5706028), (10, 2853014), (20, 1426507), (269, 106060), (538, 53030), (1076, 26515), (1345, 21212), (2690, 10606), (5303, 5380)]