256997874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:760

約数の個数: 96

約数和(自身を含む): 645083136

約数和(自身を除く): 388085262

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 31, 34, 42, 51, 62, 93, 102, 119, 186, 217, 238, 289, 357, 434, 527, 578, 651, 683, 714, 867, 1054, 1302, 1366, 1581, 1734, 2023, 2049, 3162, 3689, 4046, 4098, 4781, 6069, 7378, 8959, 9562, 11067, 11611, 12138, 14343, 17918, 21173, 22134, 23222, 26877, 28686, 34833, 42346, 53754, 62713, 63519, 69666, 81277, 125426, 127038, 148211, 162554, 188139, 197387, 243831, 296422, 359941, 376278, 394774, 444633, 487662, 592161, 719882, 889266, 1079823, 1184322, 1381709, 2159646, 2519587, 2763418, 4145127, 5039174, 6118997, 7558761, 8290254, 12237994, 15117522, 18356991, 36713982, 42832979, 85665958, 128498937, 256997874]

約数ペア:

[(1, 256997874), (2, 128498937), (3, 85665958), (6, 42832979), (7, 36713982), (14, 18356991), (17, 15117522), (21, 12237994), (31, 8290254), (34, 7558761), (42, 6118997), (51, 5039174), (62, 4145127), (93, 2763418), (102, 2519587), (119, 2159646), (186, 1381709), (217, 1184322), (238, 1079823), (289, 889266), (357, 719882), (434, 592161), (527, 487662), (578, 444633), (651, 394774), (683, 376278), (714, 359941), (867, 296422), (1054, 243831), (1302, 197387), (1366, 188139), (1581, 162554), (1734, 148211), (2023, 127038), (2049, 125426), (3162, 81277), (3689, 69666), (4046, 63519), (4098, 62713), (4781, 53754), (6069, 42346), (7378, 34833), (8959, 28686), (9562, 26877), (11067, 23222), (11611, 22134), (12138, 21173), (14343, 17918)]