256432320

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:623

約数の個数: 168

約数和(自身を含む): 887973840

約数和(自身を除く): 631541520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 269, 288, 320, 331, 360, 480, 538, 576, 662, 720, 807, 960, 993, 1076, 1324, 1345, 1440, 1614, 1655, 1986, 2152, 2421, 2648, 2690, 2880, 2979, 3228, 3310, 3972, 4035, 4304, 4842, 4965, 5296, 5380, 5958, 6456, 6620, 7944, 8070, 8608, 9684, 9930, 10592, 10760, 11916, 12105, 12912, 13240, 14895, 15888, 16140, 17216, 19368, 19860, 21184, 21520, 23832, 24210, 25824, 26480, 29790, 31776, 32280, 38736, 39720, 43040, 47664, 48420, 51648, 52960, 59580, 63552, 64560, 77472, 79440, 86080, 89039, 95328, 96840, 105920, 119160, 129120, 154944, 158880, 178078, 190656, 193680, 238320, 258240, 267117, 317760, 356156, 387360, 445195, 476640, 534234, 712312, 774720, 801351, 890390, 953280, 1068468, 1335585, 1424624, 1602702, 1780780, 2136936, 2671170, 2849248, 3205404, 3561560, 4006755, 4273872, 5342340, 5698496, 6410808, 7123120, 8013510, 8547744, 10684680, 12821616, 14246240, 16027020, 17095488, 21369360, 25643232, 28492480, 32054040, 42738720, 51286464, 64108080, 85477440, 128216160, 256432320]

約数ペア:

[(1, 256432320), (2, 128216160), (3, 85477440), (4, 64108080), (5, 51286464), (6, 42738720), (8, 32054040), (9, 28492480), (10, 25643232), (12, 21369360), (15, 17095488), (16, 16027020), (18, 14246240), (20, 12821616), (24, 10684680), (30, 8547744), (32, 8013510), (36, 7123120), (40, 6410808), (45, 5698496), (48, 5342340), (60, 4273872), (64, 4006755), (72, 3561560), (80, 3205404), (90, 2849248), (96, 2671170), (120, 2136936), (144, 1780780), (160, 1602702), (180, 1424624), (192, 1335585), (240, 1068468), (269, 953280), (288, 890390), (320, 801351), (331, 774720), (360, 712312), (480, 534234), (538, 476640), (576, 445195), (662, 387360), (720, 356156), (807, 317760), (960, 267117), (993, 258240), (1076, 238320), (1324, 193680), (1345, 190656), (1440, 178078), (1614, 158880), (1655, 154944), (1986, 129120), (2152, 119160), (2421, 105920), (2648, 96840), (2690, 95328), (2880, 89039), (2979, 86080), (3228, 79440), (3310, 77472), (3972, 64560), (4035, 63552), (4304, 59580), (4842, 52960), (4965, 51648), (5296, 48420), (5380, 47664), (5958, 43040), (6456, 39720), (6620, 38736), (7944, 32280), (8070, 31776), (8608, 29790), (9684, 26480), (9930, 25824), (10592, 24210), (10760, 23832), (11916, 21520), (12105, 21184), (12912, 19860), (13240, 19368), (14895, 17216), (15888, 16140)]