18706520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66809}}^1$

素因数の和:66827

約数の個数: 32

約数和(自身を含む): 48103200

約数和(自身を除く): 29396680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66809, 133618, 267236, 334045, 467663, 534472, 668090, 935326, 1336180, 1870652, 2338315, 2672360, 3741304, 4676630, 9353260, 18706520]

約数ペア:

[(1, 18706520), (2, 9353260), (4, 4676630), (5, 3741304), (7, 2672360), (8, 2338315), (10, 1870652), (14, 1336180), (20, 935326), (28, 668090), (35, 534472), (40, 467663), (56, 334045), (70, 267236), (140, 133618), (280, 66809)]