261647568

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:562

約数の個数: 240

約数和(自身を含む): 925107456

約数和(自身を除く): 663459888

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 41, 42, 48, 52, 56, 63, 72, 78, 82, 84, 91, 104, 112, 117, 123, 126, 144, 156, 164, 168, 182, 208, 234, 246, 252, 273, 287, 312, 328, 336, 364, 369, 468, 487, 492, 504, 533, 546, 574, 624, 656, 728, 738, 819, 861, 936, 974, 984, 1008, 1066, 1092, 1148, 1456, 1461, 1476, 1599, 1638, 1722, 1872, 1948, 1968, 2132, 2184, 2296, 2583, 2922, 2952, 3198, 3276, 3409, 3444, 3731, 3896, 4264, 4368, 4383, 4592, 4797, 5166, 5844, 5904, 6331, 6396, 6552, 6818, 6888, 7462, 7792, 8528, 8766, 9594, 10227, 10332, 11193, 11688, 12662, 12792, 13104, 13636, 13776, 14924, 17532, 18993, 19188, 19967, 20454, 20664, 22386, 23376, 25324, 25584, 27272, 29848, 30681, 33579, 35064, 37986, 38376, 39934, 40908, 41328, 44317, 44772, 50648, 54544, 56979, 59696, 59901, 61362, 67158, 70128, 75972, 76752, 79868, 81816, 88634, 89544, 101296, 113958, 119802, 122724, 132951, 134316, 139769, 151944, 159736, 163632, 177268, 179088, 179703, 227916, 239604, 245448, 259571, 265902, 268632, 279538, 303888, 319472, 354536, 359406, 398853, 419307, 455832, 479208, 490896, 519142, 531804, 537264, 559076, 709072, 718812, 778713, 797706, 838614, 911664, 958416, 1038284, 1063608, 1118152, 1257921, 1437624, 1557426, 1595412, 1677228, 1816997, 2076568, 2127216, 2236304, 2336139, 2515842, 2875248, 3114852, 3190824, 3354456, 3633994, 4153136, 4672278, 5031684, 5450991, 6229704, 6381648, 6708912, 7267988, 9344556, 10063368, 10901982, 12459408, 14535976, 16352973, 18689112, 20126736, 21803964, 29071952, 32705946, 37378224, 43607928, 65411892, 87215856, 130823784, 261647568]

約数ペア:

[(1, 261647568), (2, 130823784), (3, 87215856), (4, 65411892), (6, 43607928), (7, 37378224), (8, 32705946), (9, 29071952), (12, 21803964), (13, 20126736), (14, 18689112), (16, 16352973), (18, 14535976), (21, 12459408), (24, 10901982), (26, 10063368), (28, 9344556), (36, 7267988), (39, 6708912), (41, 6381648), (42, 6229704), (48, 5450991), (52, 5031684), (56, 4672278), (63, 4153136), (72, 3633994), (78, 3354456), (82, 3190824), (84, 3114852), (91, 2875248), (104, 2515842), (112, 2336139), (117, 2236304), (123, 2127216), (126, 2076568), (144, 1816997), (156, 1677228), (164, 1595412), (168, 1557426), (182, 1437624), (208, 1257921), (234, 1118152), (246, 1063608), (252, 1038284), (273, 958416), (287, 911664), (312, 838614), (328, 797706), (336, 778713), (364, 718812), (369, 709072), (468, 559076), (487, 537264), (492, 531804), (504, 519142), (533, 490896), (546, 479208), (574, 455832), (624, 419307), (656, 398853), (728, 359406), (738, 354536), (819, 319472), (861, 303888), (936, 279538), (974, 268632), (984, 265902), (1008, 259571), (1066, 245448), (1092, 239604), (1148, 227916), (1456, 179703), (1461, 179088), (1476, 177268), (1599, 163632), (1638, 159736), (1722, 151944), (1872, 139769), (1948, 134316), (1968, 132951), (2132, 122724), (2184, 119802), (2296, 113958), (2583, 101296), (2922, 89544), (2952, 88634), (3198, 81816), (3276, 79868), (3409, 76752), (3444, 75972), (3731, 70128), (3896, 67158), (4264, 61362), (4368, 59901), (4383, 59696), (4592, 56979), (4797, 54544), (5166, 50648), (5844, 44772), (5904, 44317), (6331, 41328), (6396, 40908), (6552, 39934), (6818, 38376), (6888, 37986), (7462, 35064), (7792, 33579), (8528, 30681), (8766, 29848), (9594, 27272), (10227, 25584), (10332, 25324), (11193, 23376), (11688, 22386), (12662, 20664), (12792, 20454), (13104, 19967), (13636, 19188), (13776, 18993), (14924, 17532)]