15661635760

素因数分解:

$2^4\times 5^1\times {\mathrm{195770447}}^1$

素因数の和:195770460

約数の個数: 20

約数和(自身を含む): 36413303328

約数和(自身を除く): 20751667568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195770447, 391540894, 783081788, 978852235, 1566163576, 1957704470, 3132327152, 3915408940, 7830817880, 15661635760]

約数ペア:

[(1, 15661635760), (2, 7830817880), (4, 3915408940), (5, 3132327152), (8, 1957704470), (10, 1566163576), (16, 978852235), (20, 783081788), (40, 391540894), (80, 195770447)]