8100440

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{647}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 18312480

約数和(自身を除く): 10212040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 647, 1252, 1294, 1565, 2504, 2588, 3130, 3235, 5176, 6260, 6470, 12520, 12940, 25880, 202511, 405022, 810044, 1012555, 1620088, 2025110, 4050220, 8100440]

約数ペア:

[(1, 8100440), (2, 4050220), (4, 2025110), (5, 1620088), (8, 1012555), (10, 810044), (20, 405022), (40, 202511), (313, 25880), (626, 12940), (647, 12520), (1252, 6470), (1294, 6260), (1565, 5176), (2504, 3235), (2588, 3130)]