31321030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1223}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 61072704

約数和(自身を除く): 29751674

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1223, 1970, 2446, 2561, 5122, 6115, 12230, 12805, 15899, 25610, 31798, 79495, 158990, 240931, 481862, 1204655, 2409310, 3132103, 6264206, 15660515, 31321030]

約数ペア:

[(1, 31321030), (2, 15660515), (5, 6264206), (10, 3132103), (13, 2409310), (26, 1204655), (65, 481862), (130, 240931), (197, 158990), (394, 79495), (985, 31798), (1223, 25610), (1970, 15899), (2446, 12805), (2561, 12230), (5122, 6115)]