64399990

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{42649}}^1$

素因数の和:42807

約数の個数: 16

約数和(自身を含む): 116690400

約数和(自身を除く): 52290410

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 42649, 85298, 213245, 426490, 6439999, 12879998, 32199995, 64399990]

約数ペア:

[(1, 64399990), (2, 32199995), (5, 12879998), (10, 6439999), (151, 426490), (302, 213245), (755, 85298), (1510, 42649)]