87401810

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{277}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 159727680

約数和(自身を除く): 72325870

約数列:

[1, 2, 5, 10, 139, 227, 277, 278, 454, 554, 695, 1135, 1385, 1390, 2270, 2770, 31553, 38503, 62879, 63106, 77006, 125758, 157765, 192515, 314395, 315530, 385030, 628790, 8740181, 17480362, 43700905, 87401810]

約数ペア:

[(1, 87401810), (2, 43700905), (5, 17480362), (10, 8740181), (139, 628790), (227, 385030), (277, 315530), (278, 314395), (454, 192515), (554, 157765), (695, 125758), (1135, 77006), (1385, 63106), (1390, 62879), (2270, 38503), (2770, 31553)]