16840135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 22861440

約数和(自身を除く): 6021305

約数列:

[1, 5, 13, 41, 65, 71, 89, 205, 355, 445, 533, 923, 1157, 2665, 2911, 3649, 4615, 5785, 6319, 14555, 18245, 31595, 37843, 47437, 82147, 189215, 237185, 259079, 410735, 1295395, 3368027, 16840135]

約数ペア:

[(1, 16840135), (5, 3368027), (13, 1295395), (41, 410735), (65, 259079), (71, 237185), (89, 189215), (205, 82147), (355, 47437), (445, 37843), (533, 31595), (923, 18245), (1157, 14555), (2665, 6319), (2911, 5785), (3649, 4615)]