31172085

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 64093536

約数和(自身を除く): 32921451

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 67, 105, 147, 201, 211, 245, 315, 335, 441, 469, 603, 633, 735, 1005, 1055, 1407, 1477, 1899, 2205, 2345, 3015, 3165, 3283, 4221, 4431, 7035, 7385, 9495, 9849, 10339, 13293, 14137, 16415, 21105, 22155, 29547, 31017, 42411, 49245, 51695, 66465, 70685, 93051, 98959, 127233, 147735, 155085, 212055, 296877, 465255, 494795, 636165, 692713, 890631, 1484385, 2078139, 3463565, 4453155, 6234417, 10390695, 31172085]

約数ペア:

[(1, 31172085), (3, 10390695), (5, 6234417), (7, 4453155), (9, 3463565), (15, 2078139), (21, 1484385), (35, 890631), (45, 692713), (49, 636165), (63, 494795), (67, 465255), (105, 296877), (147, 212055), (201, 155085), (211, 147735), (245, 127233), (315, 98959), (335, 93051), (441, 70685), (469, 66465), (603, 51695), (633, 49245), (735, 42411), (1005, 31017), (1055, 29547), (1407, 22155), (1477, 21105), (1899, 16415), (2205, 14137), (2345, 13293), (3015, 10339), (3165, 9849), (3283, 9495), (4221, 7385), (4431, 7035)]