72805520

素因数分解:

$2^4\times 5^1\times {\mathrm{910069}}^1$

素因数の和:910082

約数の個数: 20

約数和(自身を含む): 169273020

約数和(自身を除く): 96467500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 910069, 1820138, 3640276, 4550345, 7280552, 9100690, 14561104, 18201380, 36402760, 72805520]

約数ペア:

[(1, 72805520), (2, 36402760), (4, 18201380), (5, 14561104), (8, 9100690), (10, 7280552), (16, 4550345), (20, 3640276), (40, 1820138), (80, 910069)]