81736578020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{911}}^1\times {\mathrm{20117}}^1$

素因数の和:21260

約数の個数: 48

約数和(自身を含む): 172614371328

約数和(自身を除く): 90877793308

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 911, 1115, 1822, 2230, 3644, 4460, 4555, 9110, 18220, 20117, 40234, 80468, 100585, 201170, 203153, 402340, 406306, 812612, 1015765, 2031530, 4063060, 4486091, 8972182, 17944364, 18326587, 22430455, 36653174, 44860910, 73306348, 89721820, 91632935, 183265870, 366531740, 4086828901, 8173657802, 16347315604, 20434144505, 40868289010, 81736578020]

約数ペア:

[(1, 81736578020), (2, 40868289010), (4, 20434144505), (5, 16347315604), (10, 8173657802), (20, 4086828901), (223, 366531740), (446, 183265870), (892, 91632935), (911, 89721820), (1115, 73306348), (1822, 44860910), (2230, 36653174), (3644, 22430455), (4460, 18326587), (4555, 17944364), (9110, 8972182), (18220, 4486091), (20117, 4063060), (40234, 2031530), (80468, 1015765), (100585, 812612), (201170, 406306), (203153, 402340)]