256813920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:586

約数の個数: 288

約数和(自身を含む): 988775424

約数和(自身を除く): 731961504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 31, 32, 33, 36, 40, 44, 45, 48, 55, 60, 62, 66, 72, 80, 88, 90, 93, 96, 99, 110, 120, 124, 132, 144, 155, 160, 165, 176, 180, 186, 198, 220, 240, 248, 264, 279, 288, 310, 330, 341, 352, 360, 372, 396, 440, 465, 480, 495, 496, 523, 528, 558, 620, 660, 682, 720, 744, 792, 880, 930, 990, 992, 1023, 1046, 1056, 1116, 1240, 1320, 1364, 1395, 1440, 1488, 1569, 1584, 1705, 1760, 1860, 1980, 2046, 2092, 2232, 2480, 2615, 2640, 2728, 2790, 2976, 3069, 3138, 3168, 3410, 3720, 3960, 4092, 4184, 4464, 4707, 4960, 5115, 5230, 5280, 5456, 5580, 5753, 6138, 6276, 6820, 7440, 7845, 7920, 8184, 8368, 8928, 9414, 10230, 10460, 10912, 11160, 11506, 12276, 12552, 13640, 14880, 15345, 15690, 15840, 16213, 16368, 16736, 17259, 18828, 20460, 20920, 22320, 23012, 23535, 24552, 25104, 27280, 28765, 30690, 31380, 32426, 32736, 34518, 37656, 40920, 41840, 44640, 46024, 47070, 48639, 49104, 50208, 51777, 54560, 57530, 61380, 62760, 64852, 69036, 75312, 81065, 81840, 83680, 86295, 92048, 94140, 97278, 98208, 103554, 115060, 122760, 125520, 129704, 138072, 145917, 150624, 162130, 163680, 172590, 178343, 184096, 188280, 194556, 207108, 230120, 243195, 245520, 251040, 258885, 259408, 276144, 291834, 324260, 345180, 356686, 376560, 389112, 414216, 460240, 486390, 491040, 517770, 518816, 535029, 552288, 583668, 648520, 690360, 713372, 729585, 753120, 778224, 828432, 891715, 920480, 972780, 1035540, 1070058, 1167336, 1297040, 1380720, 1426744, 1459170, 1556448, 1605087, 1656864, 1783430, 1945560, 2071080, 2140116, 2334672, 2594080, 2675145, 2761440, 2853488, 2918340, 3210174, 3566860, 3891120, 4142160, 4280232, 4669344, 5350290, 5706976, 5836680, 6420348, 7133720, 7782240, 8025435, 8284320, 8560464, 10700580, 11673360, 12840696, 14267440, 16050870, 17120928, 21401160, 23346720, 25681392, 28534880, 32101740, 42802320, 51362784, 64203480, 85604640, 128406960, 256813920]

約数ペア:

[(1, 256813920), (2, 128406960), (3, 85604640), (4, 64203480), (5, 51362784), (6, 42802320), (8, 32101740), (9, 28534880), (10, 25681392), (11, 23346720), (12, 21401160), (15, 17120928), (16, 16050870), (18, 14267440), (20, 12840696), (22, 11673360), (24, 10700580), (30, 8560464), (31, 8284320), (32, 8025435), (33, 7782240), (36, 7133720), (40, 6420348), (44, 5836680), (45, 5706976), (48, 5350290), (55, 4669344), (60, 4280232), (62, 4142160), (66, 3891120), (72, 3566860), (80, 3210174), (88, 2918340), (90, 2853488), (93, 2761440), (96, 2675145), (99, 2594080), (110, 2334672), (120, 2140116), (124, 2071080), (132, 1945560), (144, 1783430), (155, 1656864), (160, 1605087), (165, 1556448), (176, 1459170), (180, 1426744), (186, 1380720), (198, 1297040), (220, 1167336), (240, 1070058), (248, 1035540), (264, 972780), (279, 920480), (288, 891715), (310, 828432), (330, 778224), (341, 753120), (352, 729585), (360, 713372), (372, 690360), (396, 648520), (440, 583668), (465, 552288), (480, 535029), (495, 518816), (496, 517770), (523, 491040), (528, 486390), (558, 460240), (620, 414216), (660, 389112), (682, 376560), (720, 356686), (744, 345180), (792, 324260), (880, 291834), (930, 276144), (990, 259408), (992, 258885), (1023, 251040), (1046, 245520), (1056, 243195), (1116, 230120), (1240, 207108), (1320, 194556), (1364, 188280), (1395, 184096), (1440, 178343), (1488, 172590), (1569, 163680), (1584, 162130), (1705, 150624), (1760, 145917), (1860, 138072), (1980, 129704), (2046, 125520), (2092, 122760), (2232, 115060), (2480, 103554), (2615, 98208), (2640, 97278), (2728, 94140), (2790, 92048), (2976, 86295), (3069, 83680), (3138, 81840), (3168, 81065), (3410, 75312), (3720, 69036), (3960, 64852), (4092, 62760), (4184, 61380), (4464, 57530), (4707, 54560), (4960, 51777), (5115, 50208), (5230, 49104), (5280, 48639), (5456, 47070), (5580, 46024), (5753, 44640), (6138, 41840), (6276, 40920), (6820, 37656), (7440, 34518), (7845, 32736), (7920, 32426), (8184, 31380), (8368, 30690), (8928, 28765), (9414, 27280), (10230, 25104), (10460, 24552), (10912, 23535), (11160, 23012), (11506, 22320), (12276, 20920), (12552, 20460), (13640, 18828), (14880, 17259), (15345, 16736), (15690, 16368), (15840, 16213)]