78865245

素因数分解:

$3^4\times 5^1\times {\mathrm{194729}}^1$

素因数の和:194746

約数の個数: 20

約数和(自身を含む): 141373980

約数和(自身を除く): 62508735

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 194729, 584187, 973645, 1752561, 2920935, 5257683, 8762805, 15773049, 26288415, 78865245]

約数ペア:

[(1, 78865245), (3, 26288415), (5, 15773049), (9, 8762805), (15, 5257683), (27, 2920935), (45, 1752561), (81, 973645), (135, 584187), (405, 194729)]