9920820488

素因数分解:

$2^3\times {\mathrm{2621}}^1\times {\mathrm{473141}}^1$

素因数の和:475768

約数の個数: 16

約数和(自身を含む): 18608674860

約数和(自身を除く): 8687854372

約数列:

[1, 2, 4, 8, 2621, 5242, 10484, 20968, 473141, 946282, 1892564, 3785128, 1240102561, 2480205122, 4960410244, 9920820488]

約数ペア:

[(1, 9920820488), (2, 4960410244), (4, 2480205122), (8, 1240102561), (2621, 3785128), (5242, 1892564), (10484, 946282), (20968, 473141)]