257874120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3301}}^1$

素因数の和:3356

約数の個数: 192

約数和(自身を含む): 989015040

約数和(自身を除く): 731140920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3301, 3720, 3906, 4340, 5208, 5580, 6510, 6602, 7812, 8680, 9765, 9903, 11160, 13020, 13204, 15624, 16505, 19530, 19806, 23107, 26040, 26408, 29709, 33010, 39060, 39612, 46214, 49515, 59418, 66020, 69321, 78120, 79224, 92428, 99030, 102331, 115535, 118836, 132040, 138642, 148545, 184856, 198060, 204662, 207963, 231070, 237672, 277284, 297090, 306993, 346605, 396120, 409324, 415926, 462140, 511655, 554568, 594180, 613986, 693210, 716317, 818648, 831852, 920979, 924280, 1023310, 1039815, 1188360, 1227972, 1386420, 1432634, 1534965, 1663704, 1841958, 2046620, 2079630, 2148951, 2455944, 2772840, 2865268, 3069930, 3581585, 3683916, 4093240, 4159260, 4297902, 4604895, 5730536, 6139860, 6446853, 7163170, 7367832, 8318520, 8595804, 9209790, 10744755, 12279720, 12893706, 14326340, 17191608, 18419580, 21489510, 25787412, 28652680, 32234265, 36839160, 42979020, 51574824, 64468530, 85958040, 128937060, 257874120]

約数ペア:

[(1, 257874120), (2, 128937060), (3, 85958040), (4, 64468530), (5, 51574824), (6, 42979020), (7, 36839160), (8, 32234265), (9, 28652680), (10, 25787412), (12, 21489510), (14, 18419580), (15, 17191608), (18, 14326340), (20, 12893706), (21, 12279720), (24, 10744755), (28, 9209790), (30, 8595804), (31, 8318520), (35, 7367832), (36, 7163170), (40, 6446853), (42, 6139860), (45, 5730536), (56, 4604895), (60, 4297902), (62, 4159260), (63, 4093240), (70, 3683916), (72, 3581585), (84, 3069930), (90, 2865268), (93, 2772840), (105, 2455944), (120, 2148951), (124, 2079630), (126, 2046620), (140, 1841958), (155, 1663704), (168, 1534965), (180, 1432634), (186, 1386420), (210, 1227972), (217, 1188360), (248, 1039815), (252, 1023310), (279, 924280), (280, 920979), (310, 831852), (315, 818648), (360, 716317), (372, 693210), (420, 613986), (434, 594180), (465, 554568), (504, 511655), (558, 462140), (620, 415926), (630, 409324), (651, 396120), (744, 346605), (840, 306993), (868, 297090), (930, 277284), (1085, 237672), (1116, 231070), (1240, 207963), (1260, 204662), (1302, 198060), (1395, 184856), (1736, 148545), (1860, 138642), (1953, 132040), (2170, 118836), (2232, 115535), (2520, 102331), (2604, 99030), (2790, 92428), (3255, 79224), (3301, 78120), (3720, 69321), (3906, 66020), (4340, 59418), (5208, 49515), (5580, 46214), (6510, 39612), (6602, 39060), (7812, 33010), (8680, 29709), (9765, 26408), (9903, 26040), (11160, 23107), (13020, 19806), (13204, 19530), (15624, 16505)]