219655720

素因数分解:

$2^3\times 5^1\times {\mathrm{5491393}}^1$

素因数の和:5491404

約数の個数: 16

約数和(自身を含む): 494225460

約数和(自身を除く): 274569740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5491393, 10982786, 21965572, 27456965, 43931144, 54913930, 109827860, 219655720]

約数ペア:

[(1, 219655720), (2, 109827860), (4, 54913930), (5, 43931144), (8, 27456965), (10, 21965572), (20, 10982786), (40, 5491393)]