81645408

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{2423}}^1$

素因数の和:2458

約数の個数: 120

約数和(自身を含む): 258694128

約数和(自身を除く): 177048720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 288, 312, 324, 351, 416, 432, 468, 624, 648, 702, 864, 936, 1053, 1248, 1296, 1404, 1872, 2106, 2423, 2592, 2808, 3744, 4212, 4846, 5616, 7269, 8424, 9692, 11232, 14538, 16848, 19384, 21807, 29076, 31499, 33696, 38768, 43614, 58152, 62998, 65421, 77536, 87228, 94497, 116304, 125996, 130842, 174456, 188994, 196263, 232608, 251992, 261684, 283491, 348912, 377988, 392526, 503984, 523368, 566982, 697824, 755976, 785052, 850473, 1007968, 1046736, 1133964, 1511952, 1570104, 1700946, 2093472, 2267928, 2551419, 3023904, 3140208, 3401892, 4535856, 5102838, 6280416, 6803784, 9071712, 10205676, 13607568, 20411352, 27215136, 40822704, 81645408]

約数ペア:

[(1, 81645408), (2, 40822704), (3, 27215136), (4, 20411352), (6, 13607568), (8, 10205676), (9, 9071712), (12, 6803784), (13, 6280416), (16, 5102838), (18, 4535856), (24, 3401892), (26, 3140208), (27, 3023904), (32, 2551419), (36, 2267928), (39, 2093472), (48, 1700946), (52, 1570104), (54, 1511952), (72, 1133964), (78, 1046736), (81, 1007968), (96, 850473), (104, 785052), (108, 755976), (117, 697824), (144, 566982), (156, 523368), (162, 503984), (208, 392526), (216, 377988), (234, 348912), (288, 283491), (312, 261684), (324, 251992), (351, 232608), (416, 196263), (432, 188994), (468, 174456), (624, 130842), (648, 125996), (702, 116304), (864, 94497), (936, 87228), (1053, 77536), (1248, 65421), (1296, 62998), (1404, 58152), (1872, 43614), (2106, 38768), (2423, 33696), (2592, 31499), (2808, 29076), (3744, 21807), (4212, 19384), (4846, 16848), (5616, 14538), (7269, 11232), (8424, 9692)]