64443040

素因数分解:

$2^5\times 5^1\times {\mathrm{402769}}^1$

素因数の和:402784

約数の個数: 24

約数和(自身を含む): 152247060

約数和(自身を除く): 87804020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 402769, 805538, 1611076, 2013845, 3222152, 4027690, 6444304, 8055380, 12888608, 16110760, 32221520, 64443040]

約数ペア:

[(1, 64443040), (2, 32221520), (4, 16110760), (5, 12888608), (8, 8055380), (10, 6444304), (16, 4027690), (20, 3222152), (32, 2013845), (40, 1611076), (80, 805538), (160, 402769)]