256394880

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{6359}}^1$

素因数の和:6391

約数の個数: 192

約数和(自身を含む): 1012003200

約数和(自身を除く): 755608320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6359, 6720, 8064, 10080, 12718, 13440, 19077, 20160, 25436, 31795, 38154, 40320, 44513, 50872, 57231, 63590, 76308, 89026, 95385, 101744, 114462, 127180, 133539, 152616, 178052, 190770, 203488, 222565, 228924, 254360, 267078, 286155, 305232, 356104, 381540, 400617, 406976, 445130, 457848, 508720, 534156, 572310, 610464, 667695, 712208, 763080, 801234, 813952, 890260, 915696, 1017440, 1068312, 1144620, 1220928, 1335390, 1424416, 1526160, 1602468, 1780520, 1831392, 2003085, 2034880, 2136624, 2289240, 2441856, 2670780, 2848832, 3052320, 3204936, 3561040, 3662784, 4006170, 4069760, 4273248, 4578480, 5341560, 5697664, 6104640, 6409872, 7122080, 7325568, 8012340, 8546496, 9156960, 10683120, 12209280, 12819744, 14244160, 16024680, 17092992, 18313920, 21366240, 25639488, 28488320, 32049360, 36627840, 42732480, 51278976, 64098720, 85464960, 128197440, 256394880]

約数ペア:

[(1, 256394880), (2, 128197440), (3, 85464960), (4, 64098720), (5, 51278976), (6, 42732480), (7, 36627840), (8, 32049360), (9, 28488320), (10, 25639488), (12, 21366240), (14, 18313920), (15, 17092992), (16, 16024680), (18, 14244160), (20, 12819744), (21, 12209280), (24, 10683120), (28, 9156960), (30, 8546496), (32, 8012340), (35, 7325568), (36, 7122080), (40, 6409872), (42, 6104640), (45, 5697664), (48, 5341560), (56, 4578480), (60, 4273248), (63, 4069760), (64, 4006170), (70, 3662784), (72, 3561040), (80, 3204936), (84, 3052320), (90, 2848832), (96, 2670780), (105, 2441856), (112, 2289240), (120, 2136624), (126, 2034880), (128, 2003085), (140, 1831392), (144, 1780520), (160, 1602468), (168, 1526160), (180, 1424416), (192, 1335390), (210, 1220928), (224, 1144620), (240, 1068312), (252, 1017440), (280, 915696), (288, 890260), (315, 813952), (320, 801234), (336, 763080), (360, 712208), (384, 667695), (420, 610464), (448, 572310), (480, 534156), (504, 508720), (560, 457848), (576, 445130), (630, 406976), (640, 400617), (672, 381540), (720, 356104), (840, 305232), (896, 286155), (960, 267078), (1008, 254360), (1120, 228924), (1152, 222565), (1260, 203488), (1344, 190770), (1440, 178052), (1680, 152616), (1920, 133539), (2016, 127180), (2240, 114462), (2520, 101744), (2688, 95385), (2880, 89026), (3360, 76308), (4032, 63590), (4480, 57231), (5040, 50872), (5760, 44513), (6359, 40320), (6720, 38154), (8064, 31795), (10080, 25436), (12718, 20160), (13440, 19077)]