28158640

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7489}}^1$

素因数の和:7549

約数の個数: 40

約数和(自身を含む): 66870720

約数和(自身を除く): 38712080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 7489, 14978, 29956, 37445, 59912, 74890, 119824, 149780, 299560, 351983, 599120, 703966, 1407932, 1759915, 2815864, 3519830, 5631728, 7039660, 14079320, 28158640]

約数ペア:

[(1, 28158640), (2, 14079320), (4, 7039660), (5, 5631728), (8, 3519830), (10, 2815864), (16, 1759915), (20, 1407932), (40, 703966), (47, 599120), (80, 351983), (94, 299560), (188, 149780), (235, 119824), (376, 74890), (470, 59912), (752, 37445), (940, 29956), (1880, 14978), (3760, 7489)]