420081155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1279}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 564264960

約数和(自身を除く): 144183805

約数列:

[1, 5, 13, 31, 65, 155, 163, 403, 815, 1279, 2015, 2119, 5053, 6395, 10595, 16627, 25265, 39649, 65689, 83135, 198245, 208477, 328445, 515437, 1042385, 2577185, 2710201, 6462787, 13551005, 32313935, 84016231, 420081155]

約数ペア:

[(1, 420081155), (5, 84016231), (13, 32313935), (31, 13551005), (65, 6462787), (155, 2710201), (163, 2577185), (403, 1042385), (815, 515437), (1279, 328445), (2015, 208477), (2119, 198245), (5053, 83135), (6395, 65689), (10595, 39649), (16627, 25265)]