128581986

素因数分解:

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

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 293078016

約数和(自身を除く): 164496030

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 41, 62, 78, 82, 93, 123, 186, 246, 403, 533, 806, 1066, 1209, 1271, 1297, 1599, 2418, 2542, 2594, 3198, 3813, 3891, 7626, 7782, 16523, 16861, 33046, 33722, 40207, 49569, 50583, 53177, 80414, 99138, 101166, 106354, 120621, 159531, 241242, 319062, 522691, 691301, 1045382, 1382602, 1568073, 1648487, 2073903, 3136146, 3296974, 4147806, 4945461, 9890922, 21430331, 42860662, 64290993, 128581986]

約数ペア:

[(1, 128581986), (2, 64290993), (3, 42860662), (6, 21430331), (13, 9890922), (26, 4945461), (31, 4147806), (39, 3296974), (41, 3136146), (62, 2073903), (78, 1648487), (82, 1568073), (93, 1382602), (123, 1045382), (186, 691301), (246, 522691), (403, 319062), (533, 241242), (806, 159531), (1066, 120621), (1209, 106354), (1271, 101166), (1297, 99138), (1599, 80414), (2418, 53177), (2542, 50583), (2594, 49569), (3198, 40207), (3813, 33722), (3891, 33046), (7626, 16861), (7782, 16523)]