18897370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1362

約数の個数: 32

約数和(自身を含む): 36450000

約数和(自身を除く): 17552630

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1249, 1513, 2498, 3026, 6245, 7565, 12490, 15130, 21233, 42466, 106165, 111161, 212330, 222322, 555805, 1111610, 1889737, 3779474, 9448685, 18897370]

約数ペア:

[(1, 18897370), (2, 9448685), (5, 3779474), (10, 1889737), (17, 1111610), (34, 555805), (85, 222322), (89, 212330), (170, 111161), (178, 106165), (445, 42466), (890, 21233), (1249, 15130), (1513, 12490), (2498, 7565), (3026, 6245)]