2138080400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:889

約数の個数: 120

約数和(自身を含む): 5291250624

約数和(自身を除く): 3153170224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 197, 200, 215, 344, 394, 400, 430, 631, 688, 788, 860, 985, 1075, 1262, 1576, 1720, 1970, 2150, 2524, 3152, 3155, 3440, 3940, 4300, 4925, 5048, 6310, 7880, 8471, 8600, 9850, 10096, 12620, 15760, 15775, 16942, 17200, 19700, 25240, 27133, 31550, 33884, 39400, 42355, 50480, 54266, 63100, 67768, 78800, 84710, 108532, 124307, 126200, 135536, 135665, 169420, 211775, 217064, 248614, 252400, 271330, 338840, 423550, 434128, 497228, 542660, 621535, 677680, 678325, 847100, 994456, 1085320, 1243070, 1356650, 1694200, 1988912, 2170640, 2486140, 2713300, 3107675, 3388400, 4972280, 5345201, 5426600, 6215350, 9944560, 10690402, 10853200, 12430700, 21380804, 24861400, 26726005, 42761608, 49722800, 53452010, 85523216, 106904020, 133630025, 213808040, 267260050, 427616080, 534520100, 1069040200, 2138080400]

約数ペア:

[(1, 2138080400), (2, 1069040200), (4, 534520100), (5, 427616080), (8, 267260050), (10, 213808040), (16, 133630025), (20, 106904020), (25, 85523216), (40, 53452010), (43, 49722800), (50, 42761608), (80, 26726005), (86, 24861400), (100, 21380804), (172, 12430700), (197, 10853200), (200, 10690402), (215, 9944560), (344, 6215350), (394, 5426600), (400, 5345201), (430, 4972280), (631, 3388400), (688, 3107675), (788, 2713300), (860, 2486140), (985, 2170640), (1075, 1988912), (1262, 1694200), (1576, 1356650), (1720, 1243070), (1970, 1085320), (2150, 994456), (2524, 847100), (3152, 678325), (3155, 677680), (3440, 621535), (3940, 542660), (4300, 497228), (4925, 434128), (5048, 423550), (6310, 338840), (7880, 271330), (8471, 252400), (8600, 248614), (9850, 217064), (10096, 211775), (12620, 169420), (15760, 135665), (15775, 135536), (16942, 126200), (17200, 124307), (19700, 108532), (25240, 84710), (27133, 78800), (31550, 67768), (33884, 63100), (39400, 54266), (42355, 50480)]