261348735

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{7481}}^1$

素因数の和:7643

約数の個数: 32

約数和(自身を含む): 446046912

約数和(自身を除く): 184698177

約数列:

[1, 3, 5, 15, 17, 51, 85, 137, 255, 411, 685, 2055, 2329, 6987, 7481, 11645, 22443, 34935, 37405, 112215, 127177, 381531, 635885, 1024897, 1907655, 3074691, 5124485, 15373455, 17423249, 52269747, 87116245, 261348735]

約数ペア:

[(1, 261348735), (3, 87116245), (5, 52269747), (15, 17423249), (17, 15373455), (51, 5124485), (85, 3074691), (137, 1907655), (255, 1024897), (411, 635885), (685, 381531), (2055, 127177), (2329, 112215), (6987, 37405), (7481, 34935), (11645, 22443)]