25859860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 33410540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1259, 1580, 2054, 2518, 4108, 5036, 5135, 6295, 10270, 12590, 16367, 20540, 25180, 32734, 65468, 81835, 99461, 163670, 198922, 327340, 397844, 497305, 994610, 1292993, 1989220, 2585986, 5171972, 6464965, 12929930, 25859860]

約数ペア:

[(1, 25859860), (2, 12929930), (4, 6464965), (5, 5171972), (10, 2585986), (13, 1989220), (20, 1292993), (26, 994610), (52, 497305), (65, 397844), (79, 327340), (130, 198922), (158, 163670), (260, 99461), (316, 81835), (395, 65468), (790, 32734), (1027, 25180), (1259, 20540), (1580, 16367), (2054, 12590), (2518, 10270), (4108, 6295), (5036, 5135)]