51319190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 106444800

約数和(自身を除く): 55125610

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 79, 95, 130, 158, 190, 247, 263, 395, 494, 526, 790, 1027, 1235, 1315, 1501, 2054, 2470, 2630, 3002, 3419, 4997, 5135, 6838, 7505, 9994, 10270, 15010, 17095, 19513, 20777, 24985, 34190, 39026, 41554, 49970, 64961, 97565, 103885, 129922, 195130, 207770, 270101, 324805, 394763, 540202, 649610, 789526, 1350505, 1973815, 2701010, 3947630, 5131919, 10263838, 25659595, 51319190]

約数ペア:

[(1, 51319190), (2, 25659595), (5, 10263838), (10, 5131919), (13, 3947630), (19, 2701010), (26, 1973815), (38, 1350505), (65, 789526), (79, 649610), (95, 540202), (130, 394763), (158, 324805), (190, 270101), (247, 207770), (263, 195130), (395, 129922), (494, 103885), (526, 97565), (790, 64961), (1027, 49970), (1235, 41554), (1315, 39026), (1501, 34190), (2054, 24985), (2470, 20777), (2630, 19513), (3002, 17095), (3419, 15010), (4997, 10270), (5135, 9994), (6838, 7505)]