99780280

素因数分解:

$2^3\times 5^1\times {\mathrm{2494507}}^1$

素因数の和:2494518

約数の個数: 16

約数和(自身を含む): 224505720

約数和(自身を除く): 124725440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2494507, 4989014, 9978028, 12472535, 19956056, 24945070, 49890140, 99780280]

約数ペア:

[(1, 99780280), (2, 49890140), (4, 24945070), (5, 19956056), (8, 12472535), (10, 9978028), (20, 4989014), (40, 2494507)]