1618444985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{1543}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 2090699520

約数和(自身を除く): 472254535

約数列:

[1, 5, 19, 61, 95, 181, 305, 905, 1159, 1543, 3439, 5795, 7715, 11041, 17195, 29317, 55205, 94123, 146585, 209779, 279283, 470615, 1048895, 1396415, 1788337, 5306377, 8941685, 17036263, 26531885, 85181315, 323688997, 1618444985]

約数ペア:

[(1, 1618444985), (5, 323688997), (19, 85181315), (61, 26531885), (95, 17036263), (181, 8941685), (305, 5306377), (905, 1788337), (1159, 1396415), (1543, 1048895), (3439, 470615), (5795, 279283), (7715, 209779), (11041, 146585), (17195, 94123), (29317, 55205)]