28158040

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2293}}^1$

素因数の和:2611

約数の個数: 32

約数和(自身を含む): 63589680

約数和(自身を除く): 35431640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2293, 2456, 3070, 4586, 6140, 9172, 11465, 12280, 18344, 22930, 45860, 91720, 703951, 1407902, 2815804, 3519755, 5631608, 7039510, 14079020, 28158040]

約数ペア:

[(1, 28158040), (2, 14079020), (4, 7039510), (5, 5631608), (8, 3519755), (10, 2815804), (20, 1407902), (40, 703951), (307, 91720), (614, 45860), (1228, 22930), (1535, 18344), (2293, 12280), (2456, 11465), (3070, 9172), (4586, 6140)]