20180559830

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10243939}}^1$

素因数の和:10244143

約数の個数: 16

約数和(自身を含む): 36509402160

約数和(自身を除く): 16328842330

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10243939, 20487878, 51219695, 102439390, 2018055983, 4036111966, 10090279915, 20180559830]

約数ペア:

[(1, 20180559830), (2, 10090279915), (5, 4036111966), (10, 2018055983), (197, 102439390), (394, 51219695), (985, 20487878), (1970, 10243939)]