8258840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 19906560

約数和(自身を除く): 11647720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 191, 230, 235, 376, 382, 460, 470, 764, 920, 940, 955, 1081, 1528, 1880, 1910, 2162, 3820, 4324, 4393, 5405, 7640, 8648, 8786, 8977, 10810, 17572, 17954, 21620, 21965, 35144, 35908, 43240, 43930, 44885, 71816, 87860, 89770, 175720, 179540, 206471, 359080, 412942, 825884, 1032355, 1651768, 2064710, 4129420, 8258840]

約数ペア:

[(1, 8258840), (2, 4129420), (4, 2064710), (5, 1651768), (8, 1032355), (10, 825884), (20, 412942), (23, 359080), (40, 206471), (46, 179540), (47, 175720), (92, 89770), (94, 87860), (115, 71816), (184, 44885), (188, 43930), (191, 43240), (230, 35908), (235, 35144), (376, 21965), (382, 21620), (460, 17954), (470, 17572), (764, 10810), (920, 8977), (940, 8786), (955, 8648), (1081, 7640), (1528, 5405), (1880, 4393), (1910, 4324), (2162, 3820)]