2730040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 6201360

約数和(自身を除く): 3471320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 521, 524, 655, 1042, 1048, 1310, 2084, 2605, 2620, 4168, 5210, 5240, 10420, 20840, 68251, 136502, 273004, 341255, 546008, 682510, 1365020, 2730040]

約数ペア:

[(1, 2730040), (2, 1365020), (4, 682510), (5, 546008), (8, 341255), (10, 273004), (20, 136502), (40, 68251), (131, 20840), (262, 10420), (521, 5240), (524, 5210), (655, 4168), (1042, 2620), (1048, 2605), (1310, 2084)]