20178690320

素因数分解:

$2^4\times 5^1\times {\mathrm{252233629}}^1$

素因数の和:252233642

約数の個数: 20

約数和(自身を含む): 46915455180

約数和(自身を除く): 26736764860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252233629, 504467258, 1008934516, 1261168145, 2017869032, 2522336290, 4035738064, 5044672580, 10089345160, 20178690320]

約数ペア:

[(1, 20178690320), (2, 10089345160), (4, 5044672580), (5, 4035738064), (8, 2522336290), (10, 2017869032), (16, 1261168145), (20, 1008934516), (40, 504467258), (80, 252233629)]