19772020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{58153}}^1$

素因数の和:58179

約数の個数: 24

約数和(自身を含む): 43964424

約数和(自身を除く): 24192404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 58153, 116306, 232612, 290765, 581530, 988601, 1163060, 1977202, 3954404, 4943005, 9886010, 19772020]

約数ペア:

[(1, 19772020), (2, 9886010), (4, 4943005), (5, 3954404), (10, 1977202), (17, 1163060), (20, 988601), (34, 581530), (68, 290765), (85, 232612), (170, 116306), (340, 58153)]