66721304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{641551}}^1$

素因数の和:641570

約数の個数: 16

約数和(自身を含む): 134725920

約数和(自身を除く): 68004616

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 641551, 1283102, 2566204, 5132408, 8340163, 16680326, 33360652, 66721304]

約数ペア:

[(1, 66721304), (2, 33360652), (4, 16680326), (8, 8340163), (13, 5132408), (26, 2566204), (52, 1283102), (104, 641551)]