278690580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 216

約数和(自身を含む): 1004395392

約数和(自身を除く): 725704812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 263, 290, 315, 348, 406, 420, 435, 522, 526, 580, 609, 630, 789, 812, 841, 870, 1015, 1044, 1052, 1218, 1260, 1305, 1315, 1578, 1682, 1740, 1827, 1841, 2030, 2367, 2436, 2523, 2610, 2630, 3045, 3156, 3364, 3654, 3682, 3945, 4060, 4205, 4734, 5046, 5220, 5260, 5523, 5887, 6090, 7308, 7364, 7569, 7627, 7890, 8410, 9135, 9205, 9468, 10092, 11046, 11774, 11835, 12180, 12615, 15138, 15254, 15780, 16569, 16820, 17661, 18270, 18410, 22092, 22881, 23548, 23670, 25230, 27615, 29435, 30276, 30508, 33138, 35322, 36540, 36820, 37845, 38135, 45762, 47340, 50460, 52983, 53389, 55230, 58870, 66276, 68643, 70644, 75690, 76270, 82845, 88305, 91524, 105966, 106778, 110460, 114405, 117740, 137286, 151380, 152540, 160167, 165690, 176610, 211932, 213556, 221183, 228810, 264915, 266945, 274572, 320334, 331380, 343215, 353220, 442366, 457620, 480501, 529830, 533890, 640668, 663549, 686430, 800835, 884732, 961002, 1059660, 1067780, 1105915, 1327098, 1372860, 1548281, 1601670, 1922004, 1990647, 2211830, 2402505, 2654196, 3096562, 3203340, 3317745, 3981294, 4423660, 4644843, 4805010, 6193124, 6635490, 7741405, 7962588, 9289686, 9610020, 9953235, 13270980, 13934529, 15482810, 18579372, 19906470, 23224215, 27869058, 30965620, 39812940, 46448430, 55738116, 69672645, 92896860, 139345290, 278690580]

約数ペア:

[(1, 278690580), (2, 139345290), (3, 92896860), (4, 69672645), (5, 55738116), (6, 46448430), (7, 39812940), (9, 30965620), (10, 27869058), (12, 23224215), (14, 19906470), (15, 18579372), (18, 15482810), (20, 13934529), (21, 13270980), (28, 9953235), (29, 9610020), (30, 9289686), (35, 7962588), (36, 7741405), (42, 6635490), (45, 6193124), (58, 4805010), (60, 4644843), (63, 4423660), (70, 3981294), (84, 3317745), (87, 3203340), (90, 3096562), (105, 2654196), (116, 2402505), (126, 2211830), (140, 1990647), (145, 1922004), (174, 1601670), (180, 1548281), (203, 1372860), (210, 1327098), (252, 1105915), (261, 1067780), (263, 1059660), (290, 961002), (315, 884732), (348, 800835), (406, 686430), (420, 663549), (435, 640668), (522, 533890), (526, 529830), (580, 480501), (609, 457620), (630, 442366), (789, 353220), (812, 343215), (841, 331380), (870, 320334), (1015, 274572), (1044, 266945), (1052, 264915), (1218, 228810), (1260, 221183), (1305, 213556), (1315, 211932), (1578, 176610), (1682, 165690), (1740, 160167), (1827, 152540), (1841, 151380), (2030, 137286), (2367, 117740), (2436, 114405), (2523, 110460), (2610, 106778), (2630, 105966), (3045, 91524), (3156, 88305), (3364, 82845), (3654, 76270), (3682, 75690), (3945, 70644), (4060, 68643), (4205, 66276), (4734, 58870), (5046, 55230), (5220, 53389), (5260, 52983), (5523, 50460), (5887, 47340), (6090, 45762), (7308, 38135), (7364, 37845), (7569, 36820), (7627, 36540), (7890, 35322), (8410, 33138), (9135, 30508), (9205, 30276), (9468, 29435), (10092, 27615), (11046, 25230), (11774, 23670), (11835, 23548), (12180, 22881), (12615, 22092), (15138, 18410), (15254, 18270), (15780, 17661), (16569, 16820)]