31493860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 70519680

約数和(自身を除く): 39025820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 211, 340, 422, 439, 844, 878, 1055, 1756, 2110, 2195, 3587, 4220, 4390, 7174, 7463, 8780, 14348, 14926, 17935, 29852, 35870, 37315, 71740, 74630, 92629, 149260, 185258, 370516, 463145, 926290, 1574693, 1852580, 3149386, 6298772, 7873465, 15746930, 31493860]

約数ペア:

[(1, 31493860), (2, 15746930), (4, 7873465), (5, 6298772), (10, 3149386), (17, 1852580), (20, 1574693), (34, 926290), (68, 463145), (85, 370516), (170, 185258), (211, 149260), (340, 92629), (422, 74630), (439, 71740), (844, 37315), (878, 35870), (1055, 29852), (1756, 17935), (2110, 14926), (2195, 14348), (3587, 8780), (4220, 7463), (4390, 7174)]