18190768

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 36426240

約数和(自身を除く): 18235472

約数列:

[1, 2, 4, 8, 16, 67, 71, 134, 142, 239, 268, 284, 478, 536, 568, 956, 1072, 1136, 1912, 3824, 4757, 9514, 16013, 16969, 19028, 32026, 33938, 38056, 64052, 67876, 76112, 128104, 135752, 256208, 271504, 1136923, 2273846, 4547692, 9095384, 18190768]

約数ペア:

[(1, 18190768), (2, 9095384), (4, 4547692), (8, 2273846), (16, 1136923), (67, 271504), (71, 256208), (134, 135752), (142, 128104), (239, 76112), (268, 67876), (284, 64052), (478, 38056), (536, 33938), (568, 32026), (956, 19028), (1072, 16969), (1136, 16013), (1912, 9514), (3824, 4757)]