90492040

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{21143}}^1$

素因数の和:21261

約数の個数: 32

約数和(自身を含む): 205519680

約数和(自身を除く): 115027640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 21143, 42286, 84572, 105715, 169144, 211430, 422860, 845720, 2262301, 4524602, 9049204, 11311505, 18098408, 22623010, 45246020, 90492040]

約数ペア:

[(1, 90492040), (2, 45246020), (4, 22623010), (5, 18098408), (8, 11311505), (10, 9049204), (20, 4524602), (40, 2262301), (107, 845720), (214, 422860), (428, 211430), (535, 169144), (856, 105715), (1070, 84572), (2140, 42286), (4280, 21143)]