18266320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5569}}^1$

素因数の和:5623

約数の個数: 40

約数和(自身を含む): 43512840

約数和(自身を除く): 25246520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5569, 11138, 22276, 27845, 44552, 55690, 89104, 111380, 222760, 228329, 445520, 456658, 913316, 1141645, 1826632, 2283290, 3653264, 4566580, 9133160, 18266320]

約数ペア:

[(1, 18266320), (2, 9133160), (4, 4566580), (5, 3653264), (8, 2283290), (10, 1826632), (16, 1141645), (20, 913316), (40, 456658), (41, 445520), (80, 228329), (82, 222760), (164, 111380), (205, 89104), (328, 55690), (410, 44552), (656, 27845), (820, 22276), (1640, 11138), (3280, 5569)]