257988510

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2371}}^1$

素因数の和:2431

約数の個数: 128

約数和(自身を含む): 765112320

約数和(自身を除く): 507123810

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 78, 90, 93, 117, 130, 135, 155, 186, 195, 234, 270, 279, 310, 351, 390, 403, 465, 558, 585, 702, 806, 837, 930, 1170, 1209, 1395, 1674, 1755, 2015, 2371, 2418, 2790, 3510, 3627, 4030, 4185, 4742, 6045, 7113, 7254, 8370, 10881, 11855, 12090, 14226, 18135, 21339, 21762, 23710, 30823, 35565, 36270, 42678, 54405, 61646, 64017, 71130, 73501, 92469, 106695, 108810, 128034, 147002, 154115, 184938, 213390, 220503, 277407, 308230, 320085, 367505, 441006, 462345, 554814, 640170, 661509, 735010, 832221, 924690, 955513, 1102515, 1323018, 1387035, 1664442, 1911026, 1984527, 2205030, 2774070, 2866539, 3307545, 3969054, 4161105, 4777565, 5733078, 6615090, 8322210, 8599617, 9555130, 9922635, 14332695, 17199234, 19845270, 25798851, 28665390, 42998085, 51597702, 85996170, 128994255, 257988510]

約数ペア:

[(1, 257988510), (2, 128994255), (3, 85996170), (5, 51597702), (6, 42998085), (9, 28665390), (10, 25798851), (13, 19845270), (15, 17199234), (18, 14332695), (26, 9922635), (27, 9555130), (30, 8599617), (31, 8322210), (39, 6615090), (45, 5733078), (54, 4777565), (62, 4161105), (65, 3969054), (78, 3307545), (90, 2866539), (93, 2774070), (117, 2205030), (130, 1984527), (135, 1911026), (155, 1664442), (186, 1387035), (195, 1323018), (234, 1102515), (270, 955513), (279, 924690), (310, 832221), (351, 735010), (390, 661509), (403, 640170), (465, 554814), (558, 462345), (585, 441006), (702, 367505), (806, 320085), (837, 308230), (930, 277407), (1170, 220503), (1209, 213390), (1395, 184938), (1674, 154115), (1755, 147002), (2015, 128034), (2371, 108810), (2418, 106695), (2790, 92469), (3510, 73501), (3627, 71130), (4030, 64017), (4185, 61646), (4742, 54405), (6045, 42678), (7113, 36270), (7254, 35565), (8370, 30823), (10881, 23710), (11855, 21762), (12090, 21339), (14226, 18135)]