68921210

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{15991}}^1$

素因数の和:16429

約数の個数: 16

約数和(自身を含む): 124353792

約数和(自身を除く): 55432582

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 15991, 31982, 79955, 159910, 6892121, 13784242, 34460605, 68921210]

約数ペア:

[(1, 68921210), (2, 34460605), (5, 13784242), (10, 6892121), (431, 159910), (862, 79955), (2155, 31982), (4310, 15991)]