77860220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{4051}}^1$

素因数の和:4122

約数の個数: 36

約数和(自身を含む): 168992712

約数和(自身を除く): 91132492

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4051, 4805, 8102, 9610, 16204, 19220, 20255, 40510, 81020, 125581, 251162, 502324, 627905, 1255810, 2511620, 3893011, 7786022, 15572044, 19465055, 38930110, 77860220]

約数ペア:

[(1, 77860220), (2, 38930110), (4, 19465055), (5, 15572044), (10, 7786022), (20, 3893011), (31, 2511620), (62, 1255810), (124, 627905), (155, 502324), (310, 251162), (620, 125581), (961, 81020), (1922, 40510), (3844, 20255), (4051, 19220), (4805, 16204), (8102, 9610)]