80817320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{757}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 194017680

約数和(自身を除く): 113200360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 314, 340, 628, 680, 757, 785, 1256, 1514, 1570, 2669, 3028, 3140, 3785, 5338, 6056, 6280, 7570, 10676, 12869, 13345, 15140, 21352, 25738, 26690, 30280, 51476, 53380, 64345, 102952, 106760, 118849, 128690, 237698, 257380, 475396, 514760, 594245, 950792, 1188490, 2020433, 2376980, 4040866, 4753960, 8081732, 10102165, 16163464, 20204330, 40408660, 80817320]

約数ペア:

[(1, 80817320), (2, 40408660), (4, 20204330), (5, 16163464), (8, 10102165), (10, 8081732), (17, 4753960), (20, 4040866), (34, 2376980), (40, 2020433), (68, 1188490), (85, 950792), (136, 594245), (157, 514760), (170, 475396), (314, 257380), (340, 237698), (628, 128690), (680, 118849), (757, 106760), (785, 102952), (1256, 64345), (1514, 53380), (1570, 51476), (2669, 30280), (3028, 26690), (3140, 25738), (3785, 21352), (5338, 15140), (6056, 13345), (6280, 12869), (7570, 10676)]