19382920

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2801}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 43879320

約数和(自身を除く): 24496400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2801, 3460, 5602, 6920, 11204, 14005, 22408, 28010, 56020, 112040, 484573, 969146, 1938292, 2422865, 3876584, 4845730, 9691460, 19382920]

約数ペア:

[(1, 19382920), (2, 9691460), (4, 4845730), (5, 3876584), (8, 2422865), (10, 1938292), (20, 969146), (40, 484573), (173, 112040), (346, 56020), (692, 28010), (865, 22408), (1384, 14005), (1730, 11204), (2801, 6920), (3460, 5602)]