77309780

素因数分解:

$2^2\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{2027}}^1$

素因数の和:3943

約数の個数: 24

約数和(自身を含む): 162515808

約数和(自身を除く): 85206028

約数列:

[1, 2, 4, 5, 10, 20, 1907, 2027, 3814, 4054, 7628, 8108, 9535, 10135, 19070, 20270, 38140, 40540, 3865489, 7730978, 15461956, 19327445, 38654890, 77309780]

約数ペア:

[(1, 77309780), (2, 38654890), (4, 19327445), (5, 15461956), (10, 7730978), (20, 3865489), (1907, 40540), (2027, 38140), (3814, 20270), (4054, 19070), (7628, 10135), (8108, 9535)]