2101240

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 4775760

約数和(自身を除く): 2674520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 401, 524, 655, 802, 1048, 1310, 1604, 2005, 2620, 3208, 4010, 5240, 8020, 16040, 52531, 105062, 210124, 262655, 420248, 525310, 1050620, 2101240]

約数ペア:

[(1, 2101240), (2, 1050620), (4, 525310), (5, 420248), (8, 262655), (10, 210124), (20, 105062), (40, 52531), (131, 16040), (262, 8020), (401, 5240), (524, 4010), (655, 3208), (802, 2620), (1048, 2005), (1310, 1604)]