215967080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 580608000

約数和(自身を除く): 364640920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 139, 140, 155, 179, 217, 248, 278, 280, 310, 358, 434, 556, 620, 695, 716, 868, 895, 973, 1085, 1112, 1240, 1253, 1390, 1432, 1736, 1790, 1946, 2170, 2506, 2780, 3580, 3892, 4309, 4340, 4865, 5012, 5549, 5560, 6265, 7160, 7784, 8618, 8680, 9730, 10024, 11098, 12530, 17236, 19460, 21545, 22196, 24881, 25060, 27745, 30163, 34472, 38843, 38920, 43090, 44392, 49762, 50120, 55490, 60326, 77686, 86180, 99524, 110980, 120652, 124405, 150815, 155372, 172360, 174167, 194215, 199048, 221960, 241304, 248810, 301630, 310744, 348334, 388430, 497620, 603260, 696668, 771311, 776860, 870835, 995240, 1206520, 1393336, 1542622, 1553720, 1741670, 3085244, 3483340, 3856555, 5399177, 6170488, 6966680, 7713110, 10798354, 15426220, 21596708, 26995885, 30852440, 43193416, 53991770, 107983540, 215967080]

約数ペア:

[(1, 215967080), (2, 107983540), (4, 53991770), (5, 43193416), (7, 30852440), (8, 26995885), (10, 21596708), (14, 15426220), (20, 10798354), (28, 7713110), (31, 6966680), (35, 6170488), (40, 5399177), (56, 3856555), (62, 3483340), (70, 3085244), (124, 1741670), (139, 1553720), (140, 1542622), (155, 1393336), (179, 1206520), (217, 995240), (248, 870835), (278, 776860), (280, 771311), (310, 696668), (358, 603260), (434, 497620), (556, 388430), (620, 348334), (695, 310744), (716, 301630), (868, 248810), (895, 241304), (973, 221960), (1085, 199048), (1112, 194215), (1240, 174167), (1253, 172360), (1390, 155372), (1432, 150815), (1736, 124405), (1790, 120652), (1946, 110980), (2170, 99524), (2506, 86180), (2780, 77686), (3580, 60326), (3892, 55490), (4309, 50120), (4340, 49762), (4865, 44392), (5012, 43090), (5549, 38920), (5560, 38843), (6265, 34472), (7160, 30163), (7784, 27745), (8618, 25060), (8680, 24881), (9730, 22196), (10024, 21545), (11098, 19460), (12530, 17236)]