20666380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147617}}^1$

素因数の和:147633

約数の個数: 24

約数和(自身を含む): 49599648

約数和(自身を除く): 28933268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147617, 295234, 590468, 738085, 1033319, 1476170, 2066638, 2952340, 4133276, 5166595, 10333190, 20666380]

約数ペア:

[(1, 20666380), (2, 10333190), (4, 5166595), (5, 4133276), (7, 2952340), (10, 2066638), (14, 1476170), (20, 1033319), (28, 738085), (35, 590468), (70, 295234), (140, 147617)]