20520020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60353}}^1$

素因数の和:60379

約数の個数: 24

約数和(自身を含む): 45627624

約数和(自身を除く): 25107604

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 60353, 120706, 241412, 301765, 603530, 1026001, 1207060, 2052002, 4104004, 5130005, 10260010, 20520020]

約数ペア:

[(1, 20520020), (2, 10260010), (4, 5130005), (5, 4104004), (10, 2052002), (17, 1207060), (20, 1026001), (34, 603530), (68, 301765), (85, 241412), (170, 120706), (340, 60353)]