128413859

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 153579888

約数和(自身を除く): 25166029

約数列:

[1, 7, 49, 53, 197, 251, 371, 1379, 1757, 2597, 9653, 10441, 12299, 13303, 49447, 73087, 93121, 346129, 511609, 651847, 2422903, 2620691, 18344837, 128413859]

約数ペア:

[(1, 128413859), (7, 18344837), (49, 2620691), (53, 2422903), (197, 651847), (251, 511609), (371, 346129), (1379, 93121), (1757, 73087), (2597, 49447), (9653, 13303), (10441, 12299)]