18102320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5519}}^1$

素因数の和:5573

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 25019920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5519, 11038, 22076, 27595, 44152, 55190, 88304, 110380, 220760, 226279, 441520, 452558, 905116, 1131395, 1810232, 2262790, 3620464, 4525580, 9051160, 18102320]

約数ペア:

[(1, 18102320), (2, 9051160), (4, 4525580), (5, 3620464), (8, 2262790), (10, 1810232), (16, 1131395), (20, 905116), (40, 452558), (41, 441520), (80, 226279), (82, 220760), (164, 110380), (205, 88304), (328, 55190), (410, 44152), (656, 27595), (820, 22076), (1640, 11038), (3280, 5519)]