30780940

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1861}}^1$

素因数の和:2697

約数の個数: 24

約数和(自身を含む): 64752912

約数和(自身を除く): 33971972

約数列:

[1, 2, 4, 5, 10, 20, 827, 1654, 1861, 3308, 3722, 4135, 7444, 8270, 9305, 16540, 18610, 37220, 1539047, 3078094, 6156188, 7695235, 15390470, 30780940]

約数ペア:

[(1, 30780940), (2, 15390470), (4, 7695235), (5, 6156188), (10, 3078094), (20, 1539047), (827, 37220), (1654, 18610), (1861, 16540), (3308, 9305), (3722, 8270), (4135, 7444)]