31481385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 27789015

約数列:

[1, 3, 5, 13, 15, 19, 29, 39, 57, 65, 87, 95, 145, 195, 247, 285, 293, 377, 435, 551, 741, 879, 1131, 1235, 1465, 1653, 1885, 2755, 3705, 3809, 4395, 5567, 5655, 7163, 8265, 8497, 11427, 16701, 19045, 21489, 25491, 27835, 35815, 42485, 57135, 72371, 83505, 107445, 110461, 127455, 161443, 217113, 331383, 361855, 484329, 552305, 807215, 1085565, 1656915, 2098759, 2421645, 6296277, 10493795, 31481385]

約数ペア:

[(1, 31481385), (3, 10493795), (5, 6296277), (13, 2421645), (15, 2098759), (19, 1656915), (29, 1085565), (39, 807215), (57, 552305), (65, 484329), (87, 361855), (95, 331383), (145, 217113), (195, 161443), (247, 127455), (285, 110461), (293, 107445), (377, 83505), (435, 72371), (551, 57135), (741, 42485), (879, 35815), (1131, 27835), (1235, 25491), (1465, 21489), (1653, 19045), (1885, 16701), (2755, 11427), (3705, 8497), (3809, 8265), (4395, 7163), (5567, 5655)]