38181915

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 34808805

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 127, 131, 135, 153, 255, 381, 393, 459, 635, 655, 765, 1143, 1179, 1905, 1965, 2159, 2227, 2295, 3429, 3537, 5715, 5895, 6477, 6681, 10795, 11135, 16637, 17145, 17685, 19431, 20043, 32385, 33405, 49911, 58293, 60129, 83185, 97155, 100215, 149733, 249555, 282829, 291465, 300645, 449199, 748665, 848487, 1414145, 2245995, 2545461, 4242435, 7636383, 12727305, 38181915]

約数ペア:

[(1, 38181915), (3, 12727305), (5, 7636383), (9, 4242435), (15, 2545461), (17, 2245995), (27, 1414145), (45, 848487), (51, 748665), (85, 449199), (127, 300645), (131, 291465), (135, 282829), (153, 249555), (255, 149733), (381, 100215), (393, 97155), (459, 83185), (635, 60129), (655, 58293), (765, 49911), (1143, 33405), (1179, 32385), (1905, 20043), (1965, 19431), (2159, 17685), (2227, 17145), (2295, 16637), (3429, 11135), (3537, 10795), (5715, 6681), (5895, 6477)]