685000680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 256

約数和(自身を含む): 2552256000

約数和(自身を除く): 1867255320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 149, 156, 168, 182, 195, 210, 260, 273, 280, 298, 312, 364, 390, 420, 421, 447, 455, 520, 546, 596, 728, 745, 780, 840, 842, 894, 910, 1043, 1092, 1192, 1263, 1365, 1490, 1560, 1684, 1788, 1820, 1937, 2086, 2105, 2184, 2235, 2526, 2730, 2947, 2980, 3129, 3368, 3576, 3640, 3874, 4172, 4210, 4470, 5052, 5215, 5460, 5473, 5811, 5894, 5960, 6258, 6315, 7748, 8344, 8420, 8841, 8940, 9685, 10104, 10430, 10920, 10946, 11622, 11788, 12516, 12630, 13559, 14735, 15496, 15645, 16419, 16840, 17682, 17880, 19370, 20860, 21892, 23244, 23576, 25032, 25260, 27118, 27365, 29055, 29470, 31290, 32838, 35364, 38311, 38740, 40677, 41720, 43784, 44205, 46488, 50520, 54236, 54730, 58110, 58940, 62580, 62729, 65676, 67795, 70728, 76622, 77480, 81354, 82095, 88410, 108472, 109460, 114933, 116220, 117880, 125160, 125458, 131352, 135590, 153244, 162708, 164190, 176820, 188187, 191555, 203385, 218920, 229866, 232440, 250916, 271180, 306488, 313645, 325416, 328380, 353640, 376374, 383110, 406770, 439103, 459732, 501832, 542360, 574665, 627290, 656760, 752748, 766220, 813540, 815477, 878206, 919464, 940935, 1149330, 1254580, 1317309, 1505496, 1532440, 1627080, 1630954, 1756412, 1881870, 2195515, 2298660, 2446431, 2509160, 2634618, 3261908, 3512824, 3763740, 4077385, 4391030, 4597320, 4892862, 5269236, 5708339, 6523816, 6586545, 7527480, 8154770, 8782060, 9785724, 10538472, 11416678, 12232155, 13173090, 16309540, 17125017, 17564120, 19571448, 22833356, 24464310, 26346180, 28541695, 32619080, 34250034, 45666712, 48928620, 52692360, 57083390, 68500068, 85625085, 97857240, 114166780, 137000136, 171250170, 228333560, 342500340, 685000680]

約数ペア:

[(1, 685000680), (2, 342500340), (3, 228333560), (4, 171250170), (5, 137000136), (6, 114166780), (7, 97857240), (8, 85625085), (10, 68500068), (12, 57083390), (13, 52692360), (14, 48928620), (15, 45666712), (20, 34250034), (21, 32619080), (24, 28541695), (26, 26346180), (28, 24464310), (30, 22833356), (35, 19571448), (39, 17564120), (40, 17125017), (42, 16309540), (52, 13173090), (56, 12232155), (60, 11416678), (65, 10538472), (70, 9785724), (78, 8782060), (84, 8154770), (91, 7527480), (104, 6586545), (105, 6523816), (120, 5708339), (130, 5269236), (140, 4892862), (149, 4597320), (156, 4391030), (168, 4077385), (182, 3763740), (195, 3512824), (210, 3261908), (260, 2634618), (273, 2509160), (280, 2446431), (298, 2298660), (312, 2195515), (364, 1881870), (390, 1756412), (420, 1630954), (421, 1627080), (447, 1532440), (455, 1505496), (520, 1317309), (546, 1254580), (596, 1149330), (728, 940935), (745, 919464), (780, 878206), (840, 815477), (842, 813540), (894, 766220), (910, 752748), (1043, 656760), (1092, 627290), (1192, 574665), (1263, 542360), (1365, 501832), (1490, 459732), (1560, 439103), (1684, 406770), (1788, 383110), (1820, 376374), (1937, 353640), (2086, 328380), (2105, 325416), (2184, 313645), (2235, 306488), (2526, 271180), (2730, 250916), (2947, 232440), (2980, 229866), (3129, 218920), (3368, 203385), (3576, 191555), (3640, 188187), (3874, 176820), (4172, 164190), (4210, 162708), (4470, 153244), (5052, 135590), (5215, 131352), (5460, 125458), (5473, 125160), (5811, 117880), (5894, 116220), (5960, 114933), (6258, 109460), (6315, 108472), (7748, 88410), (8344, 82095), (8420, 81354), (8841, 77480), (8940, 76622), (9685, 70728), (10104, 67795), (10430, 65676), (10920, 62729), (10946, 62580), (11622, 58940), (11788, 58110), (12516, 54730), (12630, 54236), (13559, 50520), (14735, 46488), (15496, 44205), (15645, 43784), (16419, 41720), (16840, 40677), (17682, 38740), (17880, 38311), (19370, 35364), (20860, 32838), (21892, 31290), (23244, 29470), (23576, 29055), (25032, 27365), (25260, 27118)]