61553560

素因数分解:

$2^3\times 5^1\times {\mathrm{1538839}}^1$

素因数の和:1538850

約数の個数: 16

約数和(自身を含む): 138495600

約数和(自身を除く): 76942040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1538839, 3077678, 6155356, 7694195, 12310712, 15388390, 30776780, 61553560]

約数ペア:

[(1, 61553560), (2, 30776780), (4, 15388390), (5, 12310712), (8, 7694195), (10, 6155356), (20, 3077678), (40, 1538839)]