78381405

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4177}}^1$

素因数の和:4330

約数の個数: 32

約数和(自身を含む): 140380800

約数和(自身を除く): 61999395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1251, 2085, 3753, 4177, 6255, 12531, 18765, 20885, 37593, 62655, 112779, 187965, 563895, 580603, 1741809, 2903015, 5225427, 8709045, 15676281, 26127135, 78381405]

約数ペア:

[(1, 78381405), (3, 26127135), (5, 15676281), (9, 8709045), (15, 5225427), (27, 2903015), (45, 1741809), (135, 580603), (139, 563895), (417, 187965), (695, 112779), (1251, 62655), (2085, 37593), (3753, 20885), (4177, 18765), (6255, 12531)]