18765520

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1847}}^1$

素因数の和:1987

約数の個数: 40

約数和(自身を含む): 43997184

約数和(自身を除く): 25231664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1847, 2032, 2540, 3694, 5080, 7388, 9235, 10160, 14776, 18470, 29552, 36940, 73880, 147760, 234569, 469138, 938276, 1172845, 1876552, 2345690, 3753104, 4691380, 9382760, 18765520]

約数ペア:

[(1, 18765520), (2, 9382760), (4, 4691380), (5, 3753104), (8, 2345690), (10, 1876552), (16, 1172845), (20, 938276), (40, 469138), (80, 234569), (127, 147760), (254, 73880), (508, 36940), (635, 29552), (1016, 18470), (1270, 14776), (1847, 10160), (2032, 9235), (2540, 7388), (3694, 5080)]