15864240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 240

約数和(自身を含む): 61067520

約数和(自身を除く): 45203280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 49, 56, 57, 60, 70, 71, 76, 80, 84, 95, 98, 105, 112, 114, 120, 133, 140, 142, 147, 152, 168, 190, 196, 210, 213, 228, 240, 245, 266, 280, 284, 285, 294, 304, 336, 355, 380, 392, 399, 420, 426, 456, 490, 497, 532, 560, 568, 570, 588, 665, 710, 735, 760, 784, 798, 840, 852, 912, 931, 980, 994, 1064, 1065, 1136, 1140, 1176, 1330, 1349, 1420, 1470, 1491, 1520, 1596, 1680, 1704, 1862, 1960, 1988, 1995, 2128, 2130, 2280, 2352, 2485, 2660, 2698, 2793, 2840, 2940, 2982, 3192, 3408, 3479, 3724, 3920, 3976, 3990, 4047, 4260, 4560, 4655, 4970, 5320, 5396, 5586, 5680, 5880, 5964, 6384, 6745, 6958, 7448, 7455, 7952, 7980, 8094, 8520, 9310, 9443, 9940, 10437, 10640, 10792, 11172, 11760, 11928, 13490, 13916, 13965, 14896, 14910, 15960, 16188, 17040, 17395, 18620, 18886, 19880, 20235, 20874, 21584, 22344, 23856, 26980, 27832, 27930, 28329, 29820, 31920, 32376, 34790, 37240, 37772, 39760, 40470, 41748, 44688, 47215, 52185, 53960, 55664, 55860, 56658, 59640, 64752, 66101, 69580, 74480, 75544, 80940, 83496, 94430, 104370, 107920, 111720, 113316, 119280, 132202, 139160, 141645, 151088, 161880, 166992, 188860, 198303, 208740, 223440, 226632, 264404, 278320, 283290, 323760, 330505, 377720, 396606, 417480, 453264, 528808, 566580, 661010, 755440, 793212, 834960, 991515, 1057616, 1133160, 1322020, 1586424, 1983030, 2266320, 2644040, 3172848, 3966060, 5288080, 7932120, 15864240]

約数ペア:

[(1, 15864240), (2, 7932120), (3, 5288080), (4, 3966060), (5, 3172848), (6, 2644040), (7, 2266320), (8, 1983030), (10, 1586424), (12, 1322020), (14, 1133160), (15, 1057616), (16, 991515), (19, 834960), (20, 793212), (21, 755440), (24, 661010), (28, 566580), (30, 528808), (35, 453264), (38, 417480), (40, 396606), (42, 377720), (48, 330505), (49, 323760), (56, 283290), (57, 278320), (60, 264404), (70, 226632), (71, 223440), (76, 208740), (80, 198303), (84, 188860), (95, 166992), (98, 161880), (105, 151088), (112, 141645), (114, 139160), (120, 132202), (133, 119280), (140, 113316), (142, 111720), (147, 107920), (152, 104370), (168, 94430), (190, 83496), (196, 80940), (210, 75544), (213, 74480), (228, 69580), (240, 66101), (245, 64752), (266, 59640), (280, 56658), (284, 55860), (285, 55664), (294, 53960), (304, 52185), (336, 47215), (355, 44688), (380, 41748), (392, 40470), (399, 39760), (420, 37772), (426, 37240), (456, 34790), (490, 32376), (497, 31920), (532, 29820), (560, 28329), (568, 27930), (570, 27832), (588, 26980), (665, 23856), (710, 22344), (735, 21584), (760, 20874), (784, 20235), (798, 19880), (840, 18886), (852, 18620), (912, 17395), (931, 17040), (980, 16188), (994, 15960), (1064, 14910), (1065, 14896), (1136, 13965), (1140, 13916), (1176, 13490), (1330, 11928), (1349, 11760), (1420, 11172), (1470, 10792), (1491, 10640), (1520, 10437), (1596, 9940), (1680, 9443), (1704, 9310), (1862, 8520), (1960, 8094), (1988, 7980), (1995, 7952), (2128, 7455), (2130, 7448), (2280, 6958), (2352, 6745), (2485, 6384), (2660, 5964), (2698, 5880), (2793, 5680), (2840, 5586), (2940, 5396), (2982, 5320), (3192, 4970), (3408, 4655), (3479, 4560), (3724, 4260), (3920, 4047), (3976, 3990)]