2018117560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{462871}}^1$

素因数の和:462991

約数の個数: 32

約数和(自身を含む): 4582432800

約数和(自身を除く): 2564315240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 462871, 925742, 1851484, 2314355, 3702968, 4628710, 9257420, 18514840, 50452939, 100905878, 201811756, 252264695, 403623512, 504529390, 1009058780, 2018117560]

約数ペア:

[(1, 2018117560), (2, 1009058780), (4, 504529390), (5, 403623512), (8, 252264695), (10, 201811756), (20, 100905878), (40, 50452939), (109, 18514840), (218, 9257420), (436, 4628710), (545, 3702968), (872, 2314355), (1090, 1851484), (2180, 925742), (4360, 462871)]