257163972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1389

約数の個数: 96

約数和(自身を含む): 683848704

約数和(自身を除く): 426684732

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 41, 52, 62, 78, 82, 93, 123, 124, 156, 164, 186, 246, 372, 403, 492, 533, 806, 1066, 1209, 1271, 1297, 1599, 1612, 2132, 2418, 2542, 2594, 3198, 3813, 3891, 4836, 5084, 5188, 6396, 7626, 7782, 15252, 15564, 16523, 16861, 33046, 33722, 40207, 49569, 50583, 53177, 66092, 67444, 80414, 99138, 101166, 106354, 120621, 159531, 160828, 198276, 202332, 212708, 241242, 319062, 482484, 522691, 638124, 691301, 1045382, 1382602, 1568073, 1648487, 2073903, 2090764, 2765204, 3136146, 3296974, 4147806, 4945461, 6272292, 6593948, 8295612, 9890922, 19781844, 21430331, 42860662, 64290993, 85721324, 128581986, 257163972]

約数ペア:

[(1, 257163972), (2, 128581986), (3, 85721324), (4, 64290993), (6, 42860662), (12, 21430331), (13, 19781844), (26, 9890922), (31, 8295612), (39, 6593948), (41, 6272292), (52, 4945461), (62, 4147806), (78, 3296974), (82, 3136146), (93, 2765204), (123, 2090764), (124, 2073903), (156, 1648487), (164, 1568073), (186, 1382602), (246, 1045382), (372, 691301), (403, 638124), (492, 522691), (533, 482484), (806, 319062), (1066, 241242), (1209, 212708), (1271, 202332), (1297, 198276), (1599, 160828), (1612, 159531), (2132, 120621), (2418, 106354), (2542, 101166), (2594, 99138), (3198, 80414), (3813, 67444), (3891, 66092), (4836, 53177), (5084, 50583), (5188, 49569), (6396, 40207), (7626, 33722), (7782, 33046), (15252, 16861), (15564, 16523)]