405607680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 216

約数和(自身を含む): 1419104232

約数和(自身を除く): 1013496552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 137, 144, 160, 180, 192, 240, 256, 257, 274, 288, 320, 360, 384, 411, 480, 514, 548, 576, 640, 685, 720, 768, 771, 822, 960, 1028, 1096, 1152, 1233, 1280, 1285, 1370, 1440, 1542, 1644, 1920, 2055, 2056, 2192, 2304, 2313, 2466, 2570, 2740, 2880, 3084, 3288, 3840, 3855, 4110, 4112, 4384, 4626, 4932, 5140, 5480, 5760, 6165, 6168, 6576, 7710, 8220, 8224, 8768, 9252, 9864, 10280, 10960, 11520, 11565, 12330, 12336, 13152, 15420, 16440, 16448, 17536, 18504, 19728, 20560, 21920, 23130, 24660, 24672, 26304, 30840, 32880, 32896, 35072, 35209, 37008, 39456, 41120, 43840, 46260, 49320, 49344, 52608, 61680, 65760, 65792, 70418, 74016, 78912, 82240, 87680, 92520, 98640, 98688, 105216, 105627, 123360, 131520, 140836, 148032, 157824, 164480, 175360, 176045, 185040, 197280, 197376, 211254, 246720, 263040, 281672, 296064, 315648, 316881, 328960, 352090, 370080, 394560, 422508, 493440, 526080, 528135, 563344, 592128, 633762, 704180, 740160, 789120, 845016, 986880, 1056270, 1126688, 1267524, 1408360, 1480320, 1578240, 1584405, 1690032, 2112540, 2253376, 2535048, 2816720, 2960640, 3168810, 3380064, 4225080, 4506752, 5070096, 5633440, 6337620, 6760128, 8450160, 9013504, 10140192, 11266880, 12675240, 13520256, 16900320, 20280384, 22533760, 25350480, 27040512, 33800640, 40560768, 45067520, 50700960, 67601280, 81121536, 101401920, 135202560, 202803840, 405607680]

約数ペア:

[(1, 405607680), (2, 202803840), (3, 135202560), (4, 101401920), (5, 81121536), (6, 67601280), (8, 50700960), (9, 45067520), (10, 40560768), (12, 33800640), (15, 27040512), (16, 25350480), (18, 22533760), (20, 20280384), (24, 16900320), (30, 13520256), (32, 12675240), (36, 11266880), (40, 10140192), (45, 9013504), (48, 8450160), (60, 6760128), (64, 6337620), (72, 5633440), (80, 5070096), (90, 4506752), (96, 4225080), (120, 3380064), (128, 3168810), (137, 2960640), (144, 2816720), (160, 2535048), (180, 2253376), (192, 2112540), (240, 1690032), (256, 1584405), (257, 1578240), (274, 1480320), (288, 1408360), (320, 1267524), (360, 1126688), (384, 1056270), (411, 986880), (480, 845016), (514, 789120), (548, 740160), (576, 704180), (640, 633762), (685, 592128), (720, 563344), (768, 528135), (771, 526080), (822, 493440), (960, 422508), (1028, 394560), (1096, 370080), (1152, 352090), (1233, 328960), (1280, 316881), (1285, 315648), (1370, 296064), (1440, 281672), (1542, 263040), (1644, 246720), (1920, 211254), (2055, 197376), (2056, 197280), (2192, 185040), (2304, 176045), (2313, 175360), (2466, 164480), (2570, 157824), (2740, 148032), (2880, 140836), (3084, 131520), (3288, 123360), (3840, 105627), (3855, 105216), (4110, 98688), (4112, 98640), (4384, 92520), (4626, 87680), (4932, 82240), (5140, 78912), (5480, 74016), (5760, 70418), (6165, 65792), (6168, 65760), (6576, 61680), (7710, 52608), (8220, 49344), (8224, 49320), (8768, 46260), (9252, 43840), (9864, 41120), (10280, 39456), (10960, 37008), (11520, 35209), (11565, 35072), (12330, 32896), (12336, 32880), (13152, 30840), (15420, 26304), (16440, 24672), (16448, 24660), (17536, 23130), (18504, 21920), (19728, 20560)]