123344120

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{7927}}^1$

素因数の和:8327

約数の個数: 32

約数和(自身を含む): 278272800

約数和(自身を除く): 154928680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 7927, 15560, 15854, 31708, 39635, 63416, 79270, 158540, 317080, 3083603, 6167206, 12334412, 15418015, 24668824, 30836030, 61672060, 123344120]

約数ペア:

[(1, 123344120), (2, 61672060), (4, 30836030), (5, 24668824), (8, 15418015), (10, 12334412), (20, 6167206), (40, 3083603), (389, 317080), (778, 158540), (1556, 79270), (1945, 63416), (3112, 39635), (3890, 31708), (7780, 15854), (7927, 15560)]