31427305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 49512960

約数和(自身を除く): 18085655

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 221, 239, 289, 455, 595, 1105, 1195, 1445, 1547, 1673, 2023, 3107, 3757, 4063, 7735, 8365, 10115, 15535, 18785, 20315, 21749, 26299, 28441, 52819, 69071, 108745, 131495, 142205, 264095, 345355, 369733, 483497, 897923, 1848665, 2417485, 4489615, 6285461, 31427305]

約数ペア:

[(1, 31427305), (5, 6285461), (7, 4489615), (13, 2417485), (17, 1848665), (35, 897923), (65, 483497), (85, 369733), (91, 345355), (119, 264095), (221, 142205), (239, 131495), (289, 108745), (455, 69071), (595, 52819), (1105, 28441), (1195, 26299), (1445, 21749), (1547, 20315), (1673, 18785), (2023, 15535), (3107, 10115), (3757, 8365), (4063, 7735)]