20205315

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:453

約数の個数: 64

約数和(自身を含む): 40118400

約数和(自身を除く): 19913085

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 87, 117, 135, 145, 195, 261, 351, 377, 397, 435, 585, 783, 1131, 1191, 1305, 1755, 1885, 1985, 3393, 3573, 3915, 5161, 5655, 5955, 10179, 10719, 11513, 15483, 16965, 17865, 25805, 34539, 46449, 50895, 53595, 57565, 77415, 103617, 139347, 149669, 172695, 232245, 310851, 449007, 518085, 696735, 748345, 1347021, 1554255, 2245035, 4041063, 6735105, 20205315]

約数ペア:

[(1, 20205315), (3, 6735105), (5, 4041063), (9, 2245035), (13, 1554255), (15, 1347021), (27, 748345), (29, 696735), (39, 518085), (45, 449007), (65, 310851), (87, 232245), (117, 172695), (135, 149669), (145, 139347), (195, 103617), (261, 77415), (351, 57565), (377, 53595), (397, 50895), (435, 46449), (585, 34539), (783, 25805), (1131, 17865), (1191, 16965), (1305, 15483), (1755, 11513), (1885, 10719), (1985, 10179), (3393, 5955), (3573, 5655), (3915, 5161)]