28764020

素因数分解:

$2^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{2137}}^1$

素因数の和:2819

約数の個数: 24

約数和(自身を含む): 60522504

約数和(自身を除く): 31758484

約数列:

[1, 2, 4, 5, 10, 20, 673, 1346, 2137, 2692, 3365, 4274, 6730, 8548, 10685, 13460, 21370, 42740, 1438201, 2876402, 5752804, 7191005, 14382010, 28764020]

約数ペア:

[(1, 28764020), (2, 14382010), (4, 7191005), (5, 5752804), (10, 2876402), (20, 1438201), (673, 42740), (1346, 21370), (2137, 13460), (2692, 10685), (3365, 8548), (4274, 6730)]