997980985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{1069}}^1$

素因数の和:1441

約数の個数: 32

約数和(自身を含む): 1306598400

約数和(自身を除く): 308617415

約数列:

[1, 5, 19, 31, 95, 155, 317, 589, 1069, 1585, 2945, 5345, 6023, 9827, 20311, 30115, 33139, 49135, 101555, 165695, 186713, 338873, 629641, 933565, 1694365, 3148205, 6438587, 10505063, 32192935, 52525315, 199596197, 997980985]

約数ペア:

[(1, 997980985), (5, 199596197), (19, 52525315), (31, 32192935), (95, 10505063), (155, 6438587), (317, 3148205), (589, 1694365), (1069, 933565), (1585, 629641), (2945, 338873), (5345, 186713), (6023, 165695), (9827, 101555), (20311, 49135), (30115, 33139)]