668889395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{1229}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 897998400

約数和(自身を除く): 229109005

約数列:

[1, 5, 17, 19, 85, 95, 323, 337, 1229, 1615, 1685, 5729, 6145, 6403, 20893, 23351, 28645, 32015, 104465, 108851, 116755, 396967, 414173, 544255, 1984835, 2070865, 7040941, 7869287, 35204705, 39346435, 133777879, 668889395]

約数ペア:

[(1, 668889395), (5, 133777879), (17, 39346435), (19, 35204705), (85, 7869287), (95, 7040941), (323, 2070865), (337, 1984835), (1229, 544255), (1615, 414173), (1685, 396967), (5729, 116755), (6145, 108851), (6403, 104465), (20893, 32015), (23351, 28645)]