8218040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5011}}^1$

素因数の和:5063

約数の個数: 32

約数和(自身を含む): 18945360

約数和(自身を除く): 10727320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5011, 10022, 20044, 25055, 40088, 50110, 100220, 200440, 205451, 410902, 821804, 1027255, 1643608, 2054510, 4109020, 8218040]

約数ペア:

[(1, 8218040), (2, 4109020), (4, 2054510), (5, 1643608), (8, 1027255), (10, 821804), (20, 410902), (40, 205451), (41, 200440), (82, 100220), (164, 50110), (205, 40088), (328, 25055), (410, 20044), (820, 10022), (1640, 5011)]