200720920

素因数分解:

$2^3\times 5^1\times {\mathrm{5018023}}^1$

素因数の和:5018034

約数の個数: 16

約数和(自身を含む): 451622160

約数和(自身を除く): 250901240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5018023, 10036046, 20072092, 25090115, 40144184, 50180230, 100360460, 200720920]

約数ペア:

[(1, 200720920), (2, 100360460), (4, 50180230), (5, 40144184), (8, 25090115), (10, 20072092), (20, 10036046), (40, 5018023)]