66888520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^2\times {\mathrm{757}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 153972540

約数和(自身を除く): 87084020

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 757, 940, 1514, 1880, 2209, 3028, 3785, 4418, 6056, 7570, 8836, 11045, 15140, 17672, 22090, 30280, 35579, 44180, 71158, 88360, 142316, 177895, 284632, 355790, 711580, 1423160, 1672213, 3344426, 6688852, 8361065, 13377704, 16722130, 33444260, 66888520]

約数ペア:

[(1, 66888520), (2, 33444260), (4, 16722130), (5, 13377704), (8, 8361065), (10, 6688852), (20, 3344426), (40, 1672213), (47, 1423160), (94, 711580), (188, 355790), (235, 284632), (376, 177895), (470, 142316), (757, 88360), (940, 71158), (1514, 44180), (1880, 35579), (2209, 30280), (3028, 22090), (3785, 17672), (4418, 15140), (6056, 11045), (7570, 8836)]