31097960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{809}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 72389700

約数和(自身を除く): 41291740

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 809, 961, 1240, 1618, 1922, 3236, 3844, 4045, 4805, 6472, 7688, 8090, 9610, 16180, 19220, 25079, 32360, 38440, 50158, 100316, 125395, 200632, 250790, 501580, 777449, 1003160, 1554898, 3109796, 3887245, 6219592, 7774490, 15548980, 31097960]

約数ペア:

[(1, 31097960), (2, 15548980), (4, 7774490), (5, 6219592), (8, 3887245), (10, 3109796), (20, 1554898), (31, 1003160), (40, 777449), (62, 501580), (124, 250790), (155, 200632), (248, 125395), (310, 100316), (620, 50158), (809, 38440), (961, 32360), (1240, 25079), (1618, 19220), (1922, 16180), (3236, 9610), (3844, 8090), (4045, 7688), (4805, 6472)]