66538840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{35393}}^1$

素因数の和:35451

約数の個数: 32

約数和(自身を含む): 152902080

約数和(自身を除く): 86363240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 35393, 70786, 141572, 176965, 283144, 353930, 707860, 1415720, 1663471, 3326942, 6653884, 8317355, 13307768, 16634710, 33269420, 66538840]

約数ペア:

[(1, 66538840), (2, 33269420), (4, 16634710), (5, 13307768), (8, 8317355), (10, 6653884), (20, 3326942), (40, 1663471), (47, 1415720), (94, 707860), (188, 353930), (235, 283144), (376, 176965), (470, 141572), (940, 70786), (1880, 35393)]