191120

素因数分解:

$2^4\times 5^1\times {\mathrm{2389}}^1$

素因数の和:2402

約数の個数: 20

約数和(自身を含む): 444540

約数和(自身を除く): 253420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2389, 4778, 9556, 11945, 19112, 23890, 38224, 47780, 95560, 191120]

約数ペア:

[(1, 191120), (2, 95560), (4, 47780), (5, 38224), (8, 23890), (10, 19112), (16, 11945), (20, 9556), (40, 4778), (80, 2389)]