261169440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4091}}^1$

素因数の和:4135

約数の個数: 192

約数和(自身を含む): 989936640

約数和(自身を除く): 728767200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 912, 1064, 1120, 1140, 1330, 1520, 1596, 1680, 1824, 1995, 2128, 2280, 2660, 3040, 3192, 3360, 3990, 4091, 4256, 4560, 5320, 6384, 7980, 8182, 9120, 10640, 12273, 12768, 15960, 16364, 20455, 21280, 24546, 28637, 31920, 32728, 40910, 49092, 57274, 61365, 63840, 65456, 77729, 81820, 85911, 98184, 114548, 122730, 130912, 143185, 155458, 163640, 171822, 196368, 229096, 233187, 245460, 286370, 310916, 327280, 343644, 388645, 392736, 429555, 458192, 466374, 490920, 544103, 572740, 621832, 654560, 687288, 777290, 859110, 916384, 932748, 981840, 1088206, 1145480, 1165935, 1243664, 1374576, 1554580, 1632309, 1718220, 1865496, 1963680, 2176412, 2290960, 2331870, 2487328, 2720515, 2749152, 3109160, 3264618, 3436440, 3730992, 4352824, 4581920, 4663740, 5441030, 6218320, 6529236, 6872880, 7461984, 8161545, 8705648, 9327480, 10882060, 12436640, 13058472, 13745760, 16323090, 17411296, 18654960, 21764120, 26116944, 32646180, 37309920, 43528240, 52233888, 65292360, 87056480, 130584720, 261169440]

約数ペア:

[(1, 261169440), (2, 130584720), (3, 87056480), (4, 65292360), (5, 52233888), (6, 43528240), (7, 37309920), (8, 32646180), (10, 26116944), (12, 21764120), (14, 18654960), (15, 17411296), (16, 16323090), (19, 13745760), (20, 13058472), (21, 12436640), (24, 10882060), (28, 9327480), (30, 8705648), (32, 8161545), (35, 7461984), (38, 6872880), (40, 6529236), (42, 6218320), (48, 5441030), (56, 4663740), (57, 4581920), (60, 4352824), (70, 3730992), (76, 3436440), (80, 3264618), (84, 3109160), (95, 2749152), (96, 2720515), (105, 2487328), (112, 2331870), (114, 2290960), (120, 2176412), (133, 1963680), (140, 1865496), (152, 1718220), (160, 1632309), (168, 1554580), (190, 1374576), (210, 1243664), (224, 1165935), (228, 1145480), (240, 1088206), (266, 981840), (280, 932748), (285, 916384), (304, 859110), (336, 777290), (380, 687288), (399, 654560), (420, 621832), (456, 572740), (480, 544103), (532, 490920), (560, 466374), (570, 458192), (608, 429555), (665, 392736), (672, 388645), (760, 343644), (798, 327280), (840, 310916), (912, 286370), (1064, 245460), (1120, 233187), (1140, 229096), (1330, 196368), (1520, 171822), (1596, 163640), (1680, 155458), (1824, 143185), (1995, 130912), (2128, 122730), (2280, 114548), (2660, 98184), (3040, 85911), (3192, 81820), (3360, 77729), (3990, 65456), (4091, 63840), (4256, 61365), (4560, 57274), (5320, 49092), (6384, 40910), (7980, 32728), (8182, 31920), (9120, 28637), (10640, 24546), (12273, 21280), (12768, 20455), (15960, 16364)]