17980240

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{709}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 41995080

約数和(自身を除く): 24014840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 709, 1268, 1418, 1585, 2536, 2836, 3170, 3545, 5072, 5672, 6340, 7090, 11344, 12680, 14180, 25360, 28360, 56720, 224753, 449506, 899012, 1123765, 1798024, 2247530, 3596048, 4495060, 8990120, 17980240]

約数ペア:

[(1, 17980240), (2, 8990120), (4, 4495060), (5, 3596048), (8, 2247530), (10, 1798024), (16, 1123765), (20, 899012), (40, 449506), (80, 224753), (317, 56720), (634, 28360), (709, 25360), (1268, 14180), (1418, 12680), (1585, 11344), (2536, 7090), (2836, 6340), (3170, 5672), (3545, 5072)]