81478150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1217}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 164926944

約数和(自身を除く): 83448794

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 103, 130, 206, 325, 515, 650, 1030, 1217, 1339, 2434, 2575, 2678, 5150, 6085, 6695, 12170, 13390, 15821, 30425, 31642, 33475, 60850, 66950, 79105, 125351, 158210, 250702, 395525, 626755, 791050, 1253510, 1629563, 3133775, 3259126, 6267550, 8147815, 16295630, 40739075, 81478150]

約数ペア:

[(1, 81478150), (2, 40739075), (5, 16295630), (10, 8147815), (13, 6267550), (25, 3259126), (26, 3133775), (50, 1629563), (65, 1253510), (103, 791050), (130, 626755), (206, 395525), (325, 250702), (515, 158210), (650, 125351), (1030, 79105), (1217, 66950), (1339, 60850), (2434, 33475), (2575, 31642), (2678, 30425), (5150, 15821), (6085, 13390), (6695, 12170)]