18423145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 25288704

約数和(自身を除く): 6865559

約数列:

[1, 5, 13, 31, 41, 65, 155, 205, 223, 403, 533, 1115, 1271, 2015, 2665, 2899, 6355, 6913, 9143, 14495, 16523, 34565, 45715, 82615, 89869, 118859, 283433, 449345, 594295, 1417165, 3684629, 18423145]

約数ペア:

[(1, 18423145), (5, 3684629), (13, 1417165), (31, 594295), (41, 449345), (65, 283433), (155, 118859), (205, 89869), (223, 82615), (403, 45715), (533, 34565), (1115, 16523), (1271, 14495), (2015, 9143), (2665, 6913), (2899, 6355)]