311550720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^2$

素因数の和:195

約数の個数: 216

約数和(自身を含む): 1085290416

約数和(自身を除く): 773739696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 79, 80, 96, 104, 120, 128, 130, 156, 158, 160, 192, 195, 208, 237, 240, 256, 260, 312, 316, 320, 384, 390, 395, 416, 474, 480, 520, 624, 632, 640, 768, 780, 790, 832, 948, 960, 1027, 1040, 1185, 1248, 1264, 1280, 1560, 1580, 1664, 1896, 1920, 2054, 2080, 2370, 2496, 2528, 3081, 3120, 3160, 3328, 3792, 3840, 4108, 4160, 4740, 4992, 5056, 5135, 6162, 6240, 6241, 6320, 7584, 8216, 8320, 9480, 9984, 10112, 10270, 12324, 12480, 12482, 12640, 15168, 15405, 16432, 16640, 18723, 18960, 20224, 20540, 24648, 24960, 24964, 25280, 30336, 30810, 31205, 32864, 37446, 37920, 41080, 49296, 49920, 49928, 50560, 60672, 61620, 62410, 65728, 74892, 75840, 81133, 82160, 93615, 98592, 99856, 101120, 123240, 124820, 131456, 149784, 151680, 162266, 164320, 187230, 197184, 199712, 243399, 246480, 249640, 262912, 299568, 303360, 324532, 328640, 374460, 394368, 399424, 405665, 486798, 492960, 499280, 599136, 649064, 657280, 748920, 788736, 798848, 811330, 973596, 985920, 998560, 1198272, 1216995, 1298128, 1314560, 1497840, 1597696, 1622660, 1947192, 1971840, 1997120, 2396544, 2433990, 2596256, 2995680, 3245320, 3894384, 3943680, 3994240, 4793088, 4867980, 5192512, 5991360, 6490640, 7788768, 7988480, 9735960, 10385024, 11982720, 12981280, 15577536, 19471920, 20770048, 23965440, 25962560, 31155072, 38943840, 51925120, 62310144, 77887680, 103850240, 155775360, 311550720]

約数ペア:

[(1, 311550720), (2, 155775360), (3, 103850240), (4, 77887680), (5, 62310144), (6, 51925120), (8, 38943840), (10, 31155072), (12, 25962560), (13, 23965440), (15, 20770048), (16, 19471920), (20, 15577536), (24, 12981280), (26, 11982720), (30, 10385024), (32, 9735960), (39, 7988480), (40, 7788768), (48, 6490640), (52, 5991360), (60, 5192512), (64, 4867980), (65, 4793088), (78, 3994240), (79, 3943680), (80, 3894384), (96, 3245320), (104, 2995680), (120, 2596256), (128, 2433990), (130, 2396544), (156, 1997120), (158, 1971840), (160, 1947192), (192, 1622660), (195, 1597696), (208, 1497840), (237, 1314560), (240, 1298128), (256, 1216995), (260, 1198272), (312, 998560), (316, 985920), (320, 973596), (384, 811330), (390, 798848), (395, 788736), (416, 748920), (474, 657280), (480, 649064), (520, 599136), (624, 499280), (632, 492960), (640, 486798), (768, 405665), (780, 399424), (790, 394368), (832, 374460), (948, 328640), (960, 324532), (1027, 303360), (1040, 299568), (1185, 262912), (1248, 249640), (1264, 246480), (1280, 243399), (1560, 199712), (1580, 197184), (1664, 187230), (1896, 164320), (1920, 162266), (2054, 151680), (2080, 149784), (2370, 131456), (2496, 124820), (2528, 123240), (3081, 101120), (3120, 99856), (3160, 98592), (3328, 93615), (3792, 82160), (3840, 81133), (4108, 75840), (4160, 74892), (4740, 65728), (4992, 62410), (5056, 61620), (5135, 60672), (6162, 50560), (6240, 49928), (6241, 49920), (6320, 49296), (7584, 41080), (8216, 37920), (8320, 37446), (9480, 32864), (9984, 31205), (10112, 30810), (10270, 30336), (12324, 25280), (12480, 24964), (12482, 24960), (12640, 24648), (15168, 20540), (15405, 20224), (16432, 18960), (16640, 18723)]