86540022680

素因数分解:

$2^3\times 5^1\times {\mathrm{9907}}^1\times {\mathrm{218381}}^1$

素因数の和:228299

約数の個数: 32

約数和(自身を含む): 194735597040

約数和(自身を除く): 108195574360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9907, 19814, 39628, 49535, 79256, 99070, 198140, 218381, 396280, 436762, 873524, 1091905, 1747048, 2183810, 4367620, 8735240, 2163500567, 4327001134, 8654002268, 10817502835, 17308004536, 21635005670, 43270011340, 86540022680]

約数ペア:

[(1, 86540022680), (2, 43270011340), (4, 21635005670), (5, 17308004536), (8, 10817502835), (10, 8654002268), (20, 4327001134), (40, 2163500567), (9907, 8735240), (19814, 4367620), (39628, 2183810), (49535, 1747048), (79256, 1091905), (99070, 873524), (198140, 436762), (218381, 396280)]