256215986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{811}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 429710400

約数和(自身を除く): 173494414

約数列:

[1, 2, 13, 26, 29, 58, 377, 419, 754, 811, 838, 1622, 5447, 10543, 10894, 12151, 21086, 23519, 24302, 47038, 157963, 305747, 315926, 339809, 611494, 679618, 4417517, 8835034, 9854461, 19708922, 128107993, 256215986]

約数ペア:

[(1, 256215986), (2, 128107993), (13, 19708922), (26, 9854461), (29, 8835034), (58, 4417517), (377, 679618), (419, 611494), (754, 339809), (811, 315926), (838, 305747), (1622, 157963), (5447, 47038), (10543, 24302), (10894, 23519), (12151, 21086)]