13940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 24

約数和(自身を含む): 31752

約数和(自身を除く): 17812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 13940]

約数ペア:

[(1, 13940), (2, 6970), (4, 3485), (5, 2788), (10, 1394), (17, 820), (20, 697), (34, 410), (41, 340), (68, 205), (82, 170), (85, 164)]