408030760

素因数分解:

$2^3\times 5^1\times {\mathrm{10200769}}^1$

素因数の和:10200780

約数の個数: 16

約数和(自身を含む): 918069300

約数和(自身を除く): 510038540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10200769, 20401538, 40803076, 51003845, 81606152, 102007690, 204015380, 408030760]

約数ペア:

[(1, 408030760), (2, 204015380), (4, 102007690), (5, 81606152), (8, 51003845), (10, 40803076), (20, 20401538), (40, 10200769)]