256448880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5839}}^1$

素因数の和:5919

約数の個数: 120

約数和(自身を含む): 875509440

約数和(自身を除く): 619060560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 720, 732, 915, 976, 1098, 1220, 1464, 1830, 2196, 2440, 2745, 2928, 3660, 4392, 4880, 5490, 5839, 7320, 8784, 10980, 11678, 14640, 17517, 21960, 23356, 29195, 35034, 43920, 46712, 52551, 58390, 70068, 87585, 93424, 105102, 116780, 140136, 175170, 210204, 233560, 262755, 280272, 350340, 356179, 420408, 467120, 525510, 700680, 712358, 840816, 1051020, 1068537, 1401360, 1424716, 1780895, 2102040, 2137074, 2849432, 3205611, 3561790, 4204080, 4274148, 5342685, 5698864, 6411222, 7123580, 8548296, 10685370, 12822444, 14247160, 16028055, 17096592, 21370740, 25644888, 28494320, 32056110, 42741480, 51289776, 64112220, 85482960, 128224440, 256448880]

約数ペア:

[(1, 256448880), (2, 128224440), (3, 85482960), (4, 64112220), (5, 51289776), (6, 42741480), (8, 32056110), (9, 28494320), (10, 25644888), (12, 21370740), (15, 17096592), (16, 16028055), (18, 14247160), (20, 12822444), (24, 10685370), (30, 8548296), (36, 7123580), (40, 6411222), (45, 5698864), (48, 5342685), (60, 4274148), (61, 4204080), (72, 3561790), (80, 3205611), (90, 2849432), (120, 2137074), (122, 2102040), (144, 1780895), (180, 1424716), (183, 1401360), (240, 1068537), (244, 1051020), (305, 840816), (360, 712358), (366, 700680), (488, 525510), (549, 467120), (610, 420408), (720, 356179), (732, 350340), (915, 280272), (976, 262755), (1098, 233560), (1220, 210204), (1464, 175170), (1830, 140136), (2196, 116780), (2440, 105102), (2745, 93424), (2928, 87585), (3660, 70068), (4392, 58390), (4880, 52551), (5490, 46712), (5839, 43920), (7320, 35034), (8784, 29195), (10980, 23356), (11678, 21960), (14640, 17517)]