280051520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 224

約数和(自身を含む): 815400960

約数和(自身を除く): 535349440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 64, 70, 74, 80, 109, 112, 124, 140, 148, 155, 160, 185, 217, 218, 224, 248, 259, 280, 296, 310, 320, 370, 434, 436, 448, 496, 518, 545, 560, 592, 620, 740, 763, 868, 872, 992, 1036, 1085, 1090, 1120, 1147, 1184, 1240, 1295, 1480, 1526, 1736, 1744, 1984, 2072, 2170, 2180, 2240, 2294, 2368, 2480, 2590, 2960, 3052, 3379, 3472, 3488, 3815, 4033, 4144, 4340, 4360, 4588, 4960, 5180, 5735, 5920, 6104, 6758, 6944, 6976, 7630, 8029, 8066, 8288, 8680, 8720, 9176, 9920, 10360, 11470, 11840, 12208, 13516, 13888, 15260, 16058, 16132, 16576, 16895, 17360, 17440, 18352, 20165, 20720, 22940, 23653, 24416, 27032, 28231, 30520, 32116, 32264, 33790, 34720, 34880, 36704, 40145, 40330, 41440, 45880, 47306, 48832, 54064, 56462, 61040, 64232, 64528, 67580, 69440, 73408, 80290, 80660, 82880, 91760, 94612, 108128, 112924, 118265, 122080, 125023, 128464, 129056, 135160, 141155, 160580, 161320, 183520, 189224, 216256, 225848, 236530, 244160, 250046, 256928, 258112, 270320, 282310, 321160, 322640, 367040, 378448, 451696, 473060, 500092, 513856, 540640, 564620, 625115, 642320, 645280, 756896, 875161, 903392, 946120, 1000184, 1081280, 1129240, 1250230, 1284640, 1290560, 1513792, 1750322, 1806784, 1892240, 2000368, 2258480, 2500460, 2569280, 3500644, 3784480, 4000736, 4375805, 4516960, 5000920, 7001288, 7568960, 8001472, 8751610, 9033920, 10001840, 14002576, 17503220, 20003680, 28005152, 35006440, 40007360, 56010304, 70012880, 140025760, 280051520]

約数ペア:

[(1, 280051520), (2, 140025760), (4, 70012880), (5, 56010304), (7, 40007360), (8, 35006440), (10, 28005152), (14, 20003680), (16, 17503220), (20, 14002576), (28, 10001840), (31, 9033920), (32, 8751610), (35, 8001472), (37, 7568960), (40, 7001288), (56, 5000920), (62, 4516960), (64, 4375805), (70, 4000736), (74, 3784480), (80, 3500644), (109, 2569280), (112, 2500460), (124, 2258480), (140, 2000368), (148, 1892240), (155, 1806784), (160, 1750322), (185, 1513792), (217, 1290560), (218, 1284640), (224, 1250230), (248, 1129240), (259, 1081280), (280, 1000184), (296, 946120), (310, 903392), (320, 875161), (370, 756896), (434, 645280), (436, 642320), (448, 625115), (496, 564620), (518, 540640), (545, 513856), (560, 500092), (592, 473060), (620, 451696), (740, 378448), (763, 367040), (868, 322640), (872, 321160), (992, 282310), (1036, 270320), (1085, 258112), (1090, 256928), (1120, 250046), (1147, 244160), (1184, 236530), (1240, 225848), (1295, 216256), (1480, 189224), (1526, 183520), (1736, 161320), (1744, 160580), (1984, 141155), (2072, 135160), (2170, 129056), (2180, 128464), (2240, 125023), (2294, 122080), (2368, 118265), (2480, 112924), (2590, 108128), (2960, 94612), (3052, 91760), (3379, 82880), (3472, 80660), (3488, 80290), (3815, 73408), (4033, 69440), (4144, 67580), (4340, 64528), (4360, 64232), (4588, 61040), (4960, 56462), (5180, 54064), (5735, 48832), (5920, 47306), (6104, 45880), (6758, 41440), (6944, 40330), (6976, 40145), (7630, 36704), (8029, 34880), (8066, 34720), (8288, 33790), (8680, 32264), (8720, 32116), (9176, 30520), (9920, 28231), (10360, 27032), (11470, 24416), (11840, 23653), (12208, 22940), (13516, 20720), (13888, 20165), (15260, 18352), (16058, 17440), (16132, 17360), (16576, 16895)]