20420530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157081}}^1$

素因数の和:157101

約数の個数: 16

約数和(自身を含む): 39584664

約数和(自身を除く): 19164134

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157081, 314162, 785405, 1570810, 2042053, 4084106, 10210265, 20420530]

約数ペア:

[(1, 20420530), (2, 10210265), (5, 4084106), (10, 2042053), (13, 1570810), (26, 785405), (65, 314162), (130, 157081)]