378778815

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25741}}^1$

素因数の和:25864

約数の個数: 32

約数和(自身を含む): 679588800

約数和(自身を除く): 300809985

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1635, 2943, 4905, 14715, 25741, 77223, 128705, 231669, 386115, 695007, 1158345, 2805769, 3475035, 8417307, 14028845, 25251921, 42086535, 75755763, 126259605, 378778815]

約数ペア:

[(1, 378778815), (3, 126259605), (5, 75755763), (9, 42086535), (15, 25251921), (27, 14028845), (45, 8417307), (109, 3475035), (135, 2805769), (327, 1158345), (545, 695007), (981, 386115), (1635, 231669), (2943, 128705), (4905, 77223), (14715, 25741)]