256881170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{282287}}^1$

素因数の和:282314

約数の個数: 32

約数和(自身を含む): 569092608

約数和(自身を除く): 312211438

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 282287, 564574, 1411435, 1976009, 2822870, 3669731, 3952018, 7339462, 9880045, 18348655, 19760090, 25688117, 36697310, 51376234, 128440585, 256881170]

約数ペア:

[(1, 256881170), (2, 128440585), (5, 51376234), (7, 36697310), (10, 25688117), (13, 19760090), (14, 18348655), (26, 9880045), (35, 7339462), (65, 3952018), (70, 3669731), (91, 2822870), (130, 1976009), (182, 1411435), (455, 564574), (910, 282287)]