256445640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2148

約数の個数: 192

約数和(自身を含む): 938995200

約数和(自身を除く): 682549560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 55, 60, 62, 66, 72, 88, 90, 93, 99, 110, 120, 124, 132, 155, 165, 180, 186, 198, 220, 248, 264, 279, 310, 330, 341, 360, 372, 396, 440, 465, 495, 558, 620, 660, 682, 744, 792, 930, 990, 1023, 1116, 1240, 1320, 1364, 1395, 1705, 1860, 1980, 2046, 2089, 2232, 2728, 2790, 3069, 3410, 3720, 3960, 4092, 4178, 5115, 5580, 6138, 6267, 6820, 8184, 8356, 10230, 10445, 11160, 12276, 12534, 13640, 15345, 16712, 18801, 20460, 20890, 22979, 24552, 25068, 30690, 31335, 37602, 40920, 41780, 45958, 50136, 61380, 62670, 64759, 68937, 75204, 83560, 91916, 94005, 114895, 122760, 125340, 129518, 137874, 150408, 183832, 188010, 194277, 206811, 229790, 250680, 259036, 275748, 323795, 344685, 376020, 388554, 413622, 459580, 518072, 551496, 582831, 647590, 689370, 712349, 752040, 777108, 827244, 919160, 971385, 1034055, 1165662, 1295180, 1378740, 1424698, 1554216, 1654488, 1942770, 2068110, 2137047, 2331324, 2590360, 2757480, 2849396, 2914155, 3561745, 3885540, 4136220, 4274094, 4662648, 5698792, 5828310, 6411141, 7123490, 7771080, 8272440, 8548188, 10685235, 11656620, 12822282, 14246980, 17096376, 21370470, 23313240, 25644564, 28493960, 32055705, 42740940, 51289128, 64111410, 85481880, 128222820, 256445640]

約数ペア:

[(1, 256445640), (2, 128222820), (3, 85481880), (4, 64111410), (5, 51289128), (6, 42740940), (8, 32055705), (9, 28493960), (10, 25644564), (11, 23313240), (12, 21370470), (15, 17096376), (18, 14246980), (20, 12822282), (22, 11656620), (24, 10685235), (30, 8548188), (31, 8272440), (33, 7771080), (36, 7123490), (40, 6411141), (44, 5828310), (45, 5698792), (55, 4662648), (60, 4274094), (62, 4136220), (66, 3885540), (72, 3561745), (88, 2914155), (90, 2849396), (93, 2757480), (99, 2590360), (110, 2331324), (120, 2137047), (124, 2068110), (132, 1942770), (155, 1654488), (165, 1554216), (180, 1424698), (186, 1378740), (198, 1295180), (220, 1165662), (248, 1034055), (264, 971385), (279, 919160), (310, 827244), (330, 777108), (341, 752040), (360, 712349), (372, 689370), (396, 647590), (440, 582831), (465, 551496), (495, 518072), (558, 459580), (620, 413622), (660, 388554), (682, 376020), (744, 344685), (792, 323795), (930, 275748), (990, 259036), (1023, 250680), (1116, 229790), (1240, 206811), (1320, 194277), (1364, 188010), (1395, 183832), (1705, 150408), (1860, 137874), (1980, 129518), (2046, 125340), (2089, 122760), (2232, 114895), (2728, 94005), (2790, 91916), (3069, 83560), (3410, 75204), (3720, 68937), (3960, 64759), (4092, 62670), (4178, 61380), (5115, 50136), (5580, 45958), (6138, 41780), (6267, 40920), (6820, 37602), (8184, 31335), (8356, 30690), (10230, 25068), (10445, 24552), (11160, 22979), (12276, 20890), (12534, 20460), (13640, 18801), (15345, 16712)]