261536520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2341}}^1$

素因数の和:2388

約数の個数: 192

約数和(自身を含む): 961156800

約数和(自身を除く): 699620280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 49, 56, 57, 60, 70, 76, 84, 95, 98, 105, 114, 120, 133, 140, 147, 152, 168, 190, 196, 210, 228, 245, 266, 280, 285, 294, 380, 392, 399, 420, 456, 490, 532, 570, 588, 665, 735, 760, 798, 840, 931, 980, 1064, 1140, 1176, 1330, 1470, 1596, 1862, 1960, 1995, 2280, 2341, 2660, 2793, 2940, 3192, 3724, 3990, 4655, 4682, 5320, 5586, 5880, 7023, 7448, 7980, 9310, 9364, 11172, 11705, 13965, 14046, 15960, 16387, 18620, 18728, 22344, 23410, 27930, 28092, 32774, 35115, 37240, 44479, 46820, 49161, 55860, 56184, 65548, 70230, 81935, 88958, 93640, 98322, 111720, 114709, 131096, 133437, 140460, 163870, 177916, 196644, 222395, 229418, 245805, 266874, 280920, 311353, 327740, 344127, 355832, 393288, 444790, 458836, 491610, 533748, 573545, 622706, 655480, 667185, 688254, 889580, 917672, 934059, 983220, 1067496, 1147090, 1245412, 1334370, 1376508, 1556765, 1720635, 1779160, 1868118, 1966440, 2179471, 2294180, 2490824, 2668740, 2753016, 3113530, 3441270, 3736236, 4358942, 4588360, 4670295, 5337480, 6227060, 6538413, 6882540, 7472472, 8717884, 9340590, 10897355, 12454120, 13076826, 13765080, 17435768, 18681180, 21794710, 26153652, 32692065, 37362360, 43589420, 52307304, 65384130, 87178840, 130768260, 261536520]

約数ペア:

[(1, 261536520), (2, 130768260), (3, 87178840), (4, 65384130), (5, 52307304), (6, 43589420), (7, 37362360), (8, 32692065), (10, 26153652), (12, 21794710), (14, 18681180), (15, 17435768), (19, 13765080), (20, 13076826), (21, 12454120), (24, 10897355), (28, 9340590), (30, 8717884), (35, 7472472), (38, 6882540), (40, 6538413), (42, 6227060), (49, 5337480), (56, 4670295), (57, 4588360), (60, 4358942), (70, 3736236), (76, 3441270), (84, 3113530), (95, 2753016), (98, 2668740), (105, 2490824), (114, 2294180), (120, 2179471), (133, 1966440), (140, 1868118), (147, 1779160), (152, 1720635), (168, 1556765), (190, 1376508), (196, 1334370), (210, 1245412), (228, 1147090), (245, 1067496), (266, 983220), (280, 934059), (285, 917672), (294, 889580), (380, 688254), (392, 667185), (399, 655480), (420, 622706), (456, 573545), (490, 533748), (532, 491610), (570, 458836), (588, 444790), (665, 393288), (735, 355832), (760, 344127), (798, 327740), (840, 311353), (931, 280920), (980, 266874), (1064, 245805), (1140, 229418), (1176, 222395), (1330, 196644), (1470, 177916), (1596, 163870), (1862, 140460), (1960, 133437), (1995, 131096), (2280, 114709), (2341, 111720), (2660, 98322), (2793, 93640), (2940, 88958), (3192, 81935), (3724, 70230), (3990, 65548), (4655, 56184), (4682, 55860), (5320, 49161), (5586, 46820), (5880, 44479), (7023, 37240), (7448, 35115), (7980, 32774), (9310, 28092), (9364, 27930), (11172, 23410), (11705, 22344), (13965, 18728), (14046, 18620), (15960, 16387)]