257118960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4937}}^1$

素因数の和:4991

約数の個数: 160

約数和(自身を含む): 940511232

約数和(自身を除く): 683392272

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 4937, 5208, 6510, 7440, 8680, 9874, 10416, 13020, 14811, 17360, 19748, 24685, 26040, 29622, 34559, 39496, 49370, 52080, 59244, 69118, 74055, 78992, 98740, 103677, 118488, 138236, 148110, 153047, 172795, 197480, 207354, 236976, 276472, 296220, 306094, 345590, 394960, 414708, 459141, 518385, 552944, 592440, 612188, 691180, 765235, 829416, 918282, 1036770, 1071329, 1184880, 1224376, 1382360, 1530470, 1658832, 1836564, 2073540, 2142658, 2295705, 2448752, 2764720, 3060940, 3213987, 3673128, 4147080, 4285316, 4591410, 5356645, 6121880, 6427974, 7346256, 8294160, 8570632, 9182820, 10713290, 12243760, 12855948, 16069935, 17141264, 18365640, 21426580, 25711896, 32139870, 36731280, 42853160, 51423792, 64279740, 85706320, 128559480, 257118960]

約数ペア:

[(1, 257118960), (2, 128559480), (3, 85706320), (4, 64279740), (5, 51423792), (6, 42853160), (7, 36731280), (8, 32139870), (10, 25711896), (12, 21426580), (14, 18365640), (15, 17141264), (16, 16069935), (20, 12855948), (21, 12243760), (24, 10713290), (28, 9182820), (30, 8570632), (31, 8294160), (35, 7346256), (40, 6427974), (42, 6121880), (48, 5356645), (56, 4591410), (60, 4285316), (62, 4147080), (70, 3673128), (80, 3213987), (84, 3060940), (93, 2764720), (105, 2448752), (112, 2295705), (120, 2142658), (124, 2073540), (140, 1836564), (155, 1658832), (168, 1530470), (186, 1382360), (210, 1224376), (217, 1184880), (240, 1071329), (248, 1036770), (280, 918282), (310, 829416), (336, 765235), (372, 691180), (420, 612188), (434, 592440), (465, 552944), (496, 518385), (560, 459141), (620, 414708), (651, 394960), (744, 345590), (840, 306094), (868, 296220), (930, 276472), (1085, 236976), (1240, 207354), (1302, 197480), (1488, 172795), (1680, 153047), (1736, 148110), (1860, 138236), (2170, 118488), (2480, 103677), (2604, 98740), (3255, 78992), (3472, 74055), (3720, 69118), (4340, 59244), (4937, 52080), (5208, 49370), (6510, 39496), (7440, 34559), (8680, 29622), (9874, 26040), (10416, 24685), (13020, 19748), (14811, 17360)]