63996880

素因数分解:

$2^4\times 5^1\times {\mathrm{799961}}^1$

素因数の和:799974

約数の個数: 20

約数和(自身を含む): 148792932

約数和(自身を除く): 84796052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 799961, 1599922, 3199844, 3999805, 6399688, 7999610, 12799376, 15999220, 31998440, 63996880]

約数ペア:

[(1, 63996880), (2, 31998440), (4, 15999220), (5, 12799376), (8, 7999610), (10, 6399688), (16, 3999805), (20, 3199844), (40, 1599922), (80, 799961)]