219076720

素因数分解:

$2^4\times 5^1\times {\mathrm{2738459}}^1$

素因数の和:2738472

約数の個数: 20

約数和(自身を含む): 509353560

約数和(自身を除く): 290276840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2738459, 5476918, 10953836, 13692295, 21907672, 27384590, 43815344, 54769180, 109538360, 219076720]

約数ペア:

[(1, 219076720), (2, 109538360), (4, 54769180), (5, 43815344), (8, 27384590), (10, 21907672), (16, 13692295), (20, 10953836), (40, 5476918), (80, 2738459)]