80551300

素因数分解:

$2^2\times 5^2\times {\mathrm{397}}^1\times {\mathrm{2029}}^1$

素因数の和:2440

約数の個数: 36

約数和(自身を含む): 175322980

約数和(自身を除く): 94771680

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 397, 794, 1588, 1985, 2029, 3970, 4058, 7940, 8116, 9925, 10145, 19850, 20290, 39700, 40580, 50725, 101450, 202900, 805513, 1611026, 3222052, 4027565, 8055130, 16110260, 20137825, 40275650, 80551300]

約数ペア:

[(1, 80551300), (2, 40275650), (4, 20137825), (5, 16110260), (10, 8055130), (20, 4027565), (25, 3222052), (50, 1611026), (100, 805513), (397, 202900), (794, 101450), (1588, 50725), (1985, 40580), (2029, 39700), (3970, 20290), (4058, 19850), (7940, 10145), (8116, 9925)]