81680040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:624

約数の個数: 192

約数和(自身を含む): 295626240

約数和(自身を除く): 213946200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 155, 156, 180, 186, 195, 234, 248, 260, 279, 310, 312, 360, 372, 390, 403, 465, 468, 520, 558, 563, 585, 620, 744, 780, 806, 930, 936, 1116, 1126, 1170, 1209, 1240, 1395, 1560, 1612, 1689, 1860, 2015, 2232, 2252, 2340, 2418, 2790, 2815, 3224, 3378, 3627, 3720, 4030, 4504, 4680, 4836, 5067, 5580, 5630, 6045, 6756, 7254, 7319, 8060, 8445, 9672, 10134, 11160, 11260, 12090, 13512, 14508, 14638, 16120, 16890, 17453, 18135, 20268, 21957, 22520, 24180, 25335, 29016, 29276, 33780, 34906, 36270, 36595, 40536, 43914, 48360, 50670, 52359, 58552, 65871, 67560, 69812, 72540, 73190, 87265, 87828, 101340, 104718, 109785, 131742, 139624, 145080, 146380, 157077, 174530, 175656, 202680, 209436, 219570, 226889, 261795, 263484, 292760, 314154, 329355, 349060, 418872, 439140, 453778, 523590, 526968, 628308, 658710, 680667, 698120, 785385, 878280, 907556, 1047180, 1134445, 1256616, 1317420, 1361334, 1570770, 1815112, 2042001, 2094360, 2268890, 2634840, 2722668, 3141540, 3403335, 4084002, 4537780, 5445336, 6283080, 6806670, 8168004, 9075560, 10210005, 13613340, 16336008, 20420010, 27226680, 40840020, 81680040]

約数ペア:

[(1, 81680040), (2, 40840020), (3, 27226680), (4, 20420010), (5, 16336008), (6, 13613340), (8, 10210005), (9, 9075560), (10, 8168004), (12, 6806670), (13, 6283080), (15, 5445336), (18, 4537780), (20, 4084002), (24, 3403335), (26, 3141540), (30, 2722668), (31, 2634840), (36, 2268890), (39, 2094360), (40, 2042001), (45, 1815112), (52, 1570770), (60, 1361334), (62, 1317420), (65, 1256616), (72, 1134445), (78, 1047180), (90, 907556), (93, 878280), (104, 785385), (117, 698120), (120, 680667), (124, 658710), (130, 628308), (155, 526968), (156, 523590), (180, 453778), (186, 439140), (195, 418872), (234, 349060), (248, 329355), (260, 314154), (279, 292760), (310, 263484), (312, 261795), (360, 226889), (372, 219570), (390, 209436), (403, 202680), (465, 175656), (468, 174530), (520, 157077), (558, 146380), (563, 145080), (585, 139624), (620, 131742), (744, 109785), (780, 104718), (806, 101340), (930, 87828), (936, 87265), (1116, 73190), (1126, 72540), (1170, 69812), (1209, 67560), (1240, 65871), (1395, 58552), (1560, 52359), (1612, 50670), (1689, 48360), (1860, 43914), (2015, 40536), (2232, 36595), (2252, 36270), (2340, 34906), (2418, 33780), (2790, 29276), (2815, 29016), (3224, 25335), (3378, 24180), (3627, 22520), (3720, 21957), (4030, 20268), (4504, 18135), (4680, 17453), (4836, 16890), (5067, 16120), (5580, 14638), (5630, 14508), (6045, 13512), (6756, 12090), (7254, 11260), (7319, 11160), (8060, 10134), (8445, 9672)]