81356090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{3917}}^1$

素因数の和:4022

約数の個数: 32

約数和(自身を含む): 153460224

約数和(自身を除く): 72104134

約数列:

[1, 2, 5, 10, 31, 62, 67, 134, 155, 310, 335, 670, 2077, 3917, 4154, 7834, 10385, 19585, 20770, 39170, 121427, 242854, 262439, 524878, 607135, 1214270, 1312195, 2624390, 8135609, 16271218, 40678045, 81356090]

約数ペア:

[(1, 81356090), (2, 40678045), (5, 16271218), (10, 8135609), (31, 2624390), (62, 1312195), (67, 1214270), (134, 607135), (155, 524878), (310, 262439), (335, 242854), (670, 121427), (2077, 39170), (3917, 20770), (4154, 19585), (7834, 10385)]