17972920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64189}}^1$

素因数の和:64207

約数の個数: 32

約数和(自身を含む): 46216800

約数和(自身を除く): 28243880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64189, 128378, 256756, 320945, 449323, 513512, 641890, 898646, 1283780, 1797292, 2246615, 2567560, 3594584, 4493230, 8986460, 17972920]

約数ペア:

[(1, 17972920), (2, 8986460), (4, 4493230), (5, 3594584), (7, 2567560), (8, 2246615), (10, 1797292), (14, 1283780), (20, 898646), (28, 641890), (35, 513512), (40, 449323), (56, 320945), (70, 256756), (140, 128378), (280, 64189)]