15816920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{56489}}^1$

素因数の和:56507

約数の個数: 32

約数和(自身を含む): 40672800

約数和(自身を除く): 24855880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 56489, 112978, 225956, 282445, 395423, 451912, 564890, 790846, 1129780, 1581692, 1977115, 2259560, 3163384, 3954230, 7908460, 15816920]

約数ペア:

[(1, 15816920), (2, 7908460), (4, 3954230), (5, 3163384), (7, 2259560), (8, 1977115), (10, 1581692), (14, 1129780), (20, 790846), (28, 564890), (35, 451912), (40, 395423), (56, 282445), (70, 225956), (140, 112978), (280, 56489)]