256230480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1367}}^1$

素因数の和:1465

約数の個数: 160

約数和(自身を含む): 879372288

約数和(自身を除く): 623141808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 71, 80, 88, 110, 120, 132, 142, 165, 176, 213, 220, 240, 264, 284, 330, 355, 426, 440, 528, 568, 660, 710, 781, 852, 880, 1065, 1136, 1320, 1367, 1420, 1562, 1704, 2130, 2343, 2640, 2734, 2840, 3124, 3408, 3905, 4101, 4260, 4686, 5468, 5680, 6248, 6835, 7810, 8202, 8520, 9372, 10936, 11715, 12496, 13670, 15037, 15620, 16404, 17040, 18744, 20505, 21872, 23430, 27340, 30074, 31240, 32808, 37488, 41010, 45111, 46860, 54680, 60148, 62480, 65616, 75185, 82020, 90222, 93720, 97057, 109360, 120296, 150370, 164040, 180444, 187440, 194114, 225555, 240592, 291171, 300740, 328080, 360888, 388228, 451110, 485285, 582342, 601480, 721776, 776456, 902220, 970570, 1067627, 1164684, 1202960, 1455855, 1552912, 1804440, 1941140, 2135254, 2329368, 2911710, 3202881, 3608880, 3882280, 4270508, 4658736, 5338135, 5823420, 6405762, 7764560, 8541016, 10676270, 11646840, 12811524, 16014405, 17082032, 21352540, 23293680, 25623048, 32028810, 42705080, 51246096, 64057620, 85410160, 128115240, 256230480]

約数ペア:

[(1, 256230480), (2, 128115240), (3, 85410160), (4, 64057620), (5, 51246096), (6, 42705080), (8, 32028810), (10, 25623048), (11, 23293680), (12, 21352540), (15, 17082032), (16, 16014405), (20, 12811524), (22, 11646840), (24, 10676270), (30, 8541016), (33, 7764560), (40, 6405762), (44, 5823420), (48, 5338135), (55, 4658736), (60, 4270508), (66, 3882280), (71, 3608880), (80, 3202881), (88, 2911710), (110, 2329368), (120, 2135254), (132, 1941140), (142, 1804440), (165, 1552912), (176, 1455855), (213, 1202960), (220, 1164684), (240, 1067627), (264, 970570), (284, 902220), (330, 776456), (355, 721776), (426, 601480), (440, 582342), (528, 485285), (568, 451110), (660, 388228), (710, 360888), (781, 328080), (852, 300740), (880, 291171), (1065, 240592), (1136, 225555), (1320, 194114), (1367, 187440), (1420, 180444), (1562, 164040), (1704, 150370), (2130, 120296), (2343, 109360), (2640, 97057), (2734, 93720), (2840, 90222), (3124, 82020), (3408, 75185), (3905, 65616), (4101, 62480), (4260, 60148), (4686, 54680), (5468, 46860), (5680, 45111), (6248, 41010), (6835, 37488), (7810, 32808), (8202, 31240), (8520, 30074), (9372, 27340), (10936, 23430), (11715, 21872), (12496, 20505), (13670, 18744), (15037, 17040), (15620, 16404)]