201809985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 363847680

約数和(自身を除く): 162037695

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 127, 145, 195, 281, 377, 381, 435, 635, 843, 1131, 1405, 1651, 1885, 1905, 3653, 3683, 4215, 4953, 5655, 8149, 8255, 10959, 11049, 18265, 18415, 24447, 24765, 35687, 40745, 47879, 54795, 55245, 105937, 107061, 122235, 143637, 178435, 239395, 317811, 463931, 529685, 535305, 718185, 1034923, 1391793, 1589055, 2319655, 3104769, 5174615, 6958965, 13453999, 15523845, 40361997, 67269995, 201809985]

約数ペア:

[(1, 201809985), (3, 67269995), (5, 40361997), (13, 15523845), (15, 13453999), (29, 6958965), (39, 5174615), (65, 3104769), (87, 2319655), (127, 1589055), (145, 1391793), (195, 1034923), (281, 718185), (377, 535305), (381, 529685), (435, 463931), (635, 317811), (843, 239395), (1131, 178435), (1405, 143637), (1651, 122235), (1885, 107061), (1905, 105937), (3653, 55245), (3683, 54795), (4215, 47879), (4953, 40745), (5655, 35687), (8149, 24765), (8255, 24447), (10959, 18415), (11049, 18265)]