256971960

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1789}}^1$

素因数の和:1835

約数の個数: 256

約数和(自身を含む): 1031040000

約数和(自身を除く): 774068040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1789, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3578, 3591, 3780, 3990, 4104, 4788, 5130, 5320, 5367, 5985, 6840, 7156, 7182, 7560, 7980, 8945, 9576, 10260, 10734, 11970, 12523, 14312, 14364, 15960, 16101, 17890, 17955, 20520, 21468, 23940, 25046, 26835, 28728, 32202, 33991, 35780, 35910, 37569, 42936, 47880, 48303, 50092, 53670, 62615, 64404, 67982, 71560, 71820, 75138, 80505, 96606, 100184, 101973, 107340, 112707, 125230, 128808, 135964, 143640, 150276, 161010, 169955, 187845, 193212, 203946, 214680, 225414, 237937, 241515, 250460, 271928, 300552, 305919, 322020, 338121, 339910, 375690, 386424, 407892, 450828, 475874, 483030, 500920, 509865, 563535, 611838, 644040, 676242, 679820, 713811, 751380, 815784, 901656, 917757, 951748, 966060, 1019730, 1127070, 1189685, 1223676, 1352484, 1359640, 1427622, 1502760, 1529595, 1690605, 1835514, 1903496, 1932120, 2039460, 2141433, 2254140, 2379370, 2447352, 2704968, 2855244, 3059190, 3381210, 3569055, 3671028, 4078920, 4282866, 4508280, 4588785, 4758740, 5710488, 6118380, 6424299, 6762420, 7138110, 7342056, 8565732, 9177570, 9517480, 10707165, 12236760, 12848598, 13524840, 14276220, 17131464, 18355140, 21414330, 25697196, 28552440, 32121495, 36710280, 42828660, 51394392, 64242990, 85657320, 128485980, 256971960]

約数ペア:

[(1, 256971960), (2, 128485980), (3, 85657320), (4, 64242990), (5, 51394392), (6, 42828660), (7, 36710280), (8, 32121495), (9, 28552440), (10, 25697196), (12, 21414330), (14, 18355140), (15, 17131464), (18, 14276220), (19, 13524840), (20, 12848598), (21, 12236760), (24, 10707165), (27, 9517480), (28, 9177570), (30, 8565732), (35, 7342056), (36, 7138110), (38, 6762420), (40, 6424299), (42, 6118380), (45, 5710488), (54, 4758740), (56, 4588785), (57, 4508280), (60, 4282866), (63, 4078920), (70, 3671028), (72, 3569055), (76, 3381210), (84, 3059190), (90, 2855244), (95, 2704968), (105, 2447352), (108, 2379370), (114, 2254140), (120, 2141433), (126, 2039460), (133, 1932120), (135, 1903496), (140, 1835514), (152, 1690605), (168, 1529595), (171, 1502760), (180, 1427622), (189, 1359640), (190, 1352484), (210, 1223676), (216, 1189685), (228, 1127070), (252, 1019730), (266, 966060), (270, 951748), (280, 917757), (285, 901656), (315, 815784), (342, 751380), (360, 713811), (378, 679820), (380, 676242), (399, 644040), (420, 611838), (456, 563535), (504, 509865), (513, 500920), (532, 483030), (540, 475874), (570, 450828), (630, 407892), (665, 386424), (684, 375690), (756, 339910), (760, 338121), (798, 322020), (840, 305919), (855, 300552), (945, 271928), (1026, 250460), (1064, 241515), (1080, 237937), (1140, 225414), (1197, 214680), (1260, 203946), (1330, 193212), (1368, 187845), (1512, 169955), (1596, 161010), (1710, 150276), (1789, 143640), (1890, 135964), (1995, 128808), (2052, 125230), (2280, 112707), (2394, 107340), (2520, 101973), (2565, 100184), (2660, 96606), (3192, 80505), (3420, 75138), (3578, 71820), (3591, 71560), (3780, 67982), (3990, 64404), (4104, 62615), (4788, 53670), (5130, 50092), (5320, 48303), (5367, 47880), (5985, 42936), (6840, 37569), (7156, 35910), (7182, 35780), (7560, 33991), (7980, 32202), (8945, 28728), (9576, 26835), (10260, 25046), (10734, 23940), (11970, 21468), (12523, 20520), (14312, 17955), (14364, 17890), (15960, 16101)]