256434480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11489}}^1$

素因数の和:11539

約数の個数: 120

約数和(自身を含む): 889050240

約数和(自身を除く): 632615760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 11160, 11489, 22320, 22978, 34467, 45956, 57445, 68934, 91912, 103401, 114890, 137868, 172335, 183824, 206802, 229780, 275736, 344670, 356159, 413604, 459560, 517005, 551472, 689340, 712318, 827208, 919120, 1034010, 1068477, 1378680, 1424636, 1654416, 1780795, 2068020, 2136954, 2757360, 2849272, 3205431, 3561590, 4136040, 4273908, 5342385, 5698544, 6410862, 7123180, 8272080, 8547816, 10684770, 12821724, 14246360, 16027155, 17095632, 21369540, 25643448, 28492720, 32054310, 42739080, 51286896, 64108620, 85478160, 128217240, 256434480]

約数ペア:

[(1, 256434480), (2, 128217240), (3, 85478160), (4, 64108620), (5, 51286896), (6, 42739080), (8, 32054310), (9, 28492720), (10, 25643448), (12, 21369540), (15, 17095632), (16, 16027155), (18, 14246360), (20, 12821724), (24, 10684770), (30, 8547816), (31, 8272080), (36, 7123180), (40, 6410862), (45, 5698544), (48, 5342385), (60, 4273908), (62, 4136040), (72, 3561590), (80, 3205431), (90, 2849272), (93, 2757360), (120, 2136954), (124, 2068020), (144, 1780795), (155, 1654416), (180, 1424636), (186, 1378680), (240, 1068477), (248, 1034010), (279, 919120), (310, 827208), (360, 712318), (372, 689340), (465, 551472), (496, 517005), (558, 459560), (620, 413604), (720, 356159), (744, 344670), (930, 275736), (1116, 229780), (1240, 206802), (1395, 183824), (1488, 172335), (1860, 137868), (2232, 114890), (2480, 103401), (2790, 91912), (3720, 68934), (4464, 57445), (5580, 45956), (7440, 34467), (11160, 22978), (11489, 22320)]