840496

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 20

約数和(自身を含む): 1644984

約数和(自身を除く): 804488

約数列:

[1, 2, 4, 8, 16, 131, 262, 401, 524, 802, 1048, 1604, 2096, 3208, 6416, 52531, 105062, 210124, 420248, 840496]

約数ペア:

[(1, 840496), (2, 420248), (4, 210124), (8, 105062), (16, 52531), (131, 6416), (262, 3208), (401, 2096), (524, 1604), (802, 1048)]