261089712

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:899

約数の個数: 120

約数和(自身を含む): 791820848

約数和(自身を除く): 530731136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 211, 234, 312, 422, 468, 624, 633, 661, 844, 936, 1266, 1322, 1688, 1872, 1899, 1983, 2532, 2644, 2743, 3376, 3798, 3966, 5064, 5288, 5486, 5949, 7596, 7932, 8229, 8593, 10128, 10576, 10972, 11898, 15192, 15864, 16458, 17186, 21944, 23796, 24687, 25779, 30384, 31728, 32916, 34372, 43888, 47592, 49374, 51558, 65832, 68744, 77337, 95184, 98748, 103116, 131664, 137488, 139471, 154674, 197496, 206232, 278942, 309348, 394992, 412464, 418413, 557884, 618696, 836826, 1115768, 1237392, 1255239, 1673652, 1813123, 2231536, 2510478, 3347304, 3626246, 5020956, 5439369, 6694608, 7252492, 10041912, 10878738, 14504984, 16318107, 20083824, 21757476, 29009968, 32636214, 43514952, 65272428, 87029904, 130544856, 261089712]

約数ペア:

[(1, 261089712), (2, 130544856), (3, 87029904), (4, 65272428), (6, 43514952), (8, 32636214), (9, 29009968), (12, 21757476), (13, 20083824), (16, 16318107), (18, 14504984), (24, 10878738), (26, 10041912), (36, 7252492), (39, 6694608), (48, 5439369), (52, 5020956), (72, 3626246), (78, 3347304), (104, 2510478), (117, 2231536), (144, 1813123), (156, 1673652), (208, 1255239), (211, 1237392), (234, 1115768), (312, 836826), (422, 618696), (468, 557884), (624, 418413), (633, 412464), (661, 394992), (844, 309348), (936, 278942), (1266, 206232), (1322, 197496), (1688, 154674), (1872, 139471), (1899, 137488), (1983, 131664), (2532, 103116), (2644, 98748), (2743, 95184), (3376, 77337), (3798, 68744), (3966, 65832), (5064, 51558), (5288, 49374), (5486, 47592), (5949, 43888), (7596, 34372), (7932, 32916), (8229, 31728), (8593, 30384), (10128, 25779), (10576, 24687), (10972, 23796), (11898, 21944), (15192, 17186), (15864, 16458)]