18233840

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{719}}^1$

素因数の和:1049

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 24352720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 719, 1268, 1438, 1585, 2536, 2876, 3170, 3595, 5072, 5752, 6340, 7190, 11504, 12680, 14380, 25360, 28760, 57520, 227923, 455846, 911692, 1139615, 1823384, 2279230, 3646768, 4558460, 9116920, 18233840]

約数ペア:

[(1, 18233840), (2, 9116920), (4, 4558460), (5, 3646768), (8, 2279230), (10, 1823384), (16, 1139615), (20, 911692), (40, 455846), (80, 227923), (317, 57520), (634, 28760), (719, 25360), (1268, 14380), (1438, 12680), (1585, 11504), (2536, 7190), (2876, 6340), (3170, 5752), (3595, 5072)]