123777280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 331128000

約数和(自身を除く): 207350720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 64, 80, 88, 110, 118, 128, 149, 160, 176, 220, 236, 256, 295, 298, 320, 352, 440, 472, 590, 596, 640, 649, 704, 745, 880, 944, 1180, 1192, 1280, 1298, 1408, 1490, 1639, 1760, 1888, 2360, 2384, 2596, 2816, 2980, 3245, 3278, 3520, 3776, 4720, 4768, 5192, 5960, 6490, 6556, 7040, 7552, 8195, 8791, 9440, 9536, 10384, 11920, 12980, 13112, 14080, 15104, 16390, 17582, 18880, 19072, 20768, 23840, 25960, 26224, 32780, 35164, 37760, 38144, 41536, 43955, 47680, 51920, 52448, 65560, 70328, 75520, 83072, 87910, 95360, 96701, 103840, 104896, 131120, 140656, 166144, 175820, 190720, 193402, 207680, 209792, 262240, 281312, 351640, 386804, 415360, 419584, 483505, 524480, 562624, 703280, 773608, 830720, 967010, 1048960, 1125248, 1406560, 1547216, 1934020, 2097920, 2250496, 2813120, 3094432, 3868040, 5626240, 6188864, 7736080, 11252480, 12377728, 15472160, 24755456, 30944320, 61888640, 123777280]

約数ペア:

[(1, 123777280), (2, 61888640), (4, 30944320), (5, 24755456), (8, 15472160), (10, 12377728), (11, 11252480), (16, 7736080), (20, 6188864), (22, 5626240), (32, 3868040), (40, 3094432), (44, 2813120), (55, 2250496), (59, 2097920), (64, 1934020), (80, 1547216), (88, 1406560), (110, 1125248), (118, 1048960), (128, 967010), (149, 830720), (160, 773608), (176, 703280), (220, 562624), (236, 524480), (256, 483505), (295, 419584), (298, 415360), (320, 386804), (352, 351640), (440, 281312), (472, 262240), (590, 209792), (596, 207680), (640, 193402), (649, 190720), (704, 175820), (745, 166144), (880, 140656), (944, 131120), (1180, 104896), (1192, 103840), (1280, 96701), (1298, 95360), (1408, 87910), (1490, 83072), (1639, 75520), (1760, 70328), (1888, 65560), (2360, 52448), (2384, 51920), (2596, 47680), (2816, 43955), (2980, 41536), (3245, 38144), (3278, 37760), (3520, 35164), (3776, 32780), (4720, 26224), (4768, 25960), (5192, 23840), (5960, 20768), (6490, 19072), (6556, 18880), (7040, 17582), (7552, 16390), (8195, 15104), (8791, 14080), (9440, 13112), (9536, 12980), (10384, 11920)]