201556720

素因数分解:

$2^4\times 5^1\times {\mathrm{2519459}}^1$

素因数の和:2519472

約数の個数: 20

約数和(自身を含む): 468619560

約数和(自身を除く): 267062840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2519459, 5038918, 10077836, 12597295, 20155672, 25194590, 40311344, 50389180, 100778360, 201556720]

約数ペア:

[(1, 201556720), (2, 100778360), (4, 50389180), (5, 40311344), (8, 25194590), (10, 20155672), (16, 12597295), (20, 10077836), (40, 5038918), (80, 2519459)]