1997967960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{167}}^2\times {\mathrm{199}}^1$

素因数の和:550

約数の個数: 144

約数和(自身を含む): 6565338000

約数和(自身を除く): 4567370040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 167, 180, 199, 334, 360, 398, 501, 597, 668, 796, 835, 995, 1002, 1194, 1336, 1503, 1592, 1670, 1791, 1990, 2004, 2388, 2505, 2985, 3006, 3340, 3582, 3980, 4008, 4776, 5010, 5970, 6012, 6680, 7164, 7515, 7960, 8955, 10020, 11940, 12024, 14328, 15030, 17910, 20040, 23880, 27889, 30060, 33233, 35820, 55778, 60120, 66466, 71640, 83667, 99699, 111556, 132932, 139445, 166165, 167334, 199398, 223112, 251001, 265864, 278890, 299097, 332330, 334668, 398796, 418335, 498495, 502002, 557780, 598194, 664660, 669336, 797592, 836670, 996990, 1004004, 1115560, 1196388, 1255005, 1329320, 1495485, 1673340, 1993980, 2008008, 2392776, 2510010, 2990970, 3346680, 3987960, 5020020, 5549911, 5981940, 10040040, 11099822, 11963880, 16649733, 22199644, 27749555, 33299466, 44399288, 49949199, 55499110, 66598932, 83248665, 99898398, 110998220, 133197864, 166497330, 199796796, 221996440, 249745995, 332994660, 399593592, 499491990, 665989320, 998983980, 1997967960]

約数ペア:

[(1, 1997967960), (2, 998983980), (3, 665989320), (4, 499491990), (5, 399593592), (6, 332994660), (8, 249745995), (9, 221996440), (10, 199796796), (12, 166497330), (15, 133197864), (18, 110998220), (20, 99898398), (24, 83248665), (30, 66598932), (36, 55499110), (40, 49949199), (45, 44399288), (60, 33299466), (72, 27749555), (90, 22199644), (120, 16649733), (167, 11963880), (180, 11099822), (199, 10040040), (334, 5981940), (360, 5549911), (398, 5020020), (501, 3987960), (597, 3346680), (668, 2990970), (796, 2510010), (835, 2392776), (995, 2008008), (1002, 1993980), (1194, 1673340), (1336, 1495485), (1503, 1329320), (1592, 1255005), (1670, 1196388), (1791, 1115560), (1990, 1004004), (2004, 996990), (2388, 836670), (2505, 797592), (2985, 669336), (3006, 664660), (3340, 598194), (3582, 557780), (3980, 502002), (4008, 498495), (4776, 418335), (5010, 398796), (5970, 334668), (6012, 332330), (6680, 299097), (7164, 278890), (7515, 265864), (7960, 251001), (8955, 223112), (10020, 199398), (11940, 167334), (12024, 166165), (14328, 139445), (15030, 132932), (17910, 111556), (20040, 99699), (23880, 83667), (27889, 71640), (30060, 66466), (33233, 60120), (35820, 55778)]