8947540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{809}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 21772800

約数和(自身を除く): 12825260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 809, 1106, 1580, 1618, 2212, 2765, 3236, 4045, 5530, 5663, 8090, 11060, 11326, 16180, 22652, 28315, 56630, 63911, 113260, 127822, 255644, 319555, 447377, 639110, 894754, 1278220, 1789508, 2236885, 4473770, 8947540]

約数ペア:

[(1, 8947540), (2, 4473770), (4, 2236885), (5, 1789508), (7, 1278220), (10, 894754), (14, 639110), (20, 447377), (28, 319555), (35, 255644), (70, 127822), (79, 113260), (140, 63911), (158, 56630), (316, 28315), (395, 22652), (553, 16180), (790, 11326), (809, 11060), (1106, 8090), (1580, 5663), (1618, 5530), (2212, 4045), (2765, 3236)]