42555280

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1021}}^1$

素因数の和:1555

約数の個数: 40

約数和(自身を含む): 99228024

約数和(自身を除く): 56672744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1021, 1042, 2042, 2084, 2605, 4084, 4168, 5105, 5210, 8168, 8336, 10210, 10420, 16336, 20420, 20840, 40840, 41680, 81680, 531941, 1063882, 2127764, 2659705, 4255528, 5319410, 8511056, 10638820, 21277640, 42555280]

約数ペア:

[(1, 42555280), (2, 21277640), (4, 10638820), (5, 8511056), (8, 5319410), (10, 4255528), (16, 2659705), (20, 2127764), (40, 1063882), (80, 531941), (521, 81680), (1021, 41680), (1042, 40840), (2042, 20840), (2084, 20420), (2605, 16336), (4084, 10420), (4168, 10210), (5105, 8336), (5210, 8168)]