257654880

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{25561}}^1$

素因数の和:25589

約数の個数: 144

約数和(自身を含む): 1004893344

約数和(自身を除く): 747238464

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, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 25561, 51122, 76683, 102244, 127805, 153366, 178927, 204488, 230049, 255610, 306732, 357854, 383415, 408976, 460098, 511220, 536781, 613464, 715708, 766830, 817952, 894635, 920196, 1022440, 1073562, 1150245, 1226928, 1431416, 1533660, 1610343, 1789270, 1840392, 2044880, 2147124, 2300490, 2453856, 2683905, 2862832, 3067320, 3220686, 3578540, 3680784, 4089760, 4294248, 4600980, 5367810, 5725664, 6134640, 6441372, 7157080, 7361568, 8051715, 8588496, 9201960, 10735620, 12269280, 12882744, 14314160, 16103430, 17176992, 18403920, 21471240, 25765488, 28628320, 32206860, 36807840, 42942480, 51530976, 64413720, 85884960, 128827440, 257654880]

約数ペア:

[(1, 257654880), (2, 128827440), (3, 85884960), (4, 64413720), (5, 51530976), (6, 42942480), (7, 36807840), (8, 32206860), (9, 28628320), (10, 25765488), (12, 21471240), (14, 18403920), (15, 17176992), (16, 16103430), (18, 14314160), (20, 12882744), (21, 12269280), (24, 10735620), (28, 9201960), (30, 8588496), (32, 8051715), (35, 7361568), (36, 7157080), (40, 6441372), (42, 6134640), (45, 5725664), (48, 5367810), (56, 4600980), (60, 4294248), (63, 4089760), (70, 3680784), (72, 3578540), (80, 3220686), (84, 3067320), (90, 2862832), (96, 2683905), (105, 2453856), (112, 2300490), (120, 2147124), (126, 2044880), (140, 1840392), (144, 1789270), (160, 1610343), (168, 1533660), (180, 1431416), (210, 1226928), (224, 1150245), (240, 1073562), (252, 1022440), (280, 920196), (288, 894635), (315, 817952), (336, 766830), (360, 715708), (420, 613464), (480, 536781), (504, 511220), (560, 460098), (630, 408976), (672, 383415), (720, 357854), (840, 306732), (1008, 255610), (1120, 230049), (1260, 204488), (1440, 178927), (1680, 153366), (2016, 127805), (2520, 102244), (3360, 76683), (5040, 51122), (10080, 25561)]