1261988215

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{129901}}^1$

素因数の和:130002

約数の個数: 16

約数和(自身を含む): 1590000480

約数和(自身を除く): 328012265

約数列:

[1, 5, 29, 67, 145, 335, 1943, 9715, 129901, 649505, 3767129, 8703367, 18835645, 43516835, 252397643, 1261988215]

約数ペア:

[(1, 1261988215), (5, 252397643), (29, 43516835), (67, 18835645), (145, 8703367), (335, 3767129), (1943, 649505), (9715, 129901)]