159782020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{420479}}^1$

素因数の和:420507

約数の個数: 24

約数和(自身を含む): 353203200

約数和(自身を除く): 193421180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 420479, 840958, 1681916, 2102395, 4204790, 7989101, 8409580, 15978202, 31956404, 39945505, 79891010, 159782020]

約数ペア:

[(1, 159782020), (2, 79891010), (4, 39945505), (5, 31956404), (10, 15978202), (19, 8409580), (20, 7989101), (38, 4204790), (76, 2102395), (95, 1681916), (190, 840958), (380, 420479)]