85772020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{80917}}^1$

素因数の和:80979

約数の個数: 24

約数和(自身を含む): 183522024

約数和(自身を除く): 97750004

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 80917, 161834, 323668, 404585, 809170, 1618340, 4288601, 8577202, 17154404, 21443005, 42886010, 85772020]

約数ペア:

[(1, 85772020), (2, 42886010), (4, 21443005), (5, 17154404), (10, 8577202), (20, 4288601), (53, 1618340), (106, 809170), (212, 404585), (265, 323668), (530, 161834), (1060, 80917)]