82780575

素因数分解:

$3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{5231}}^1$

素因数の和:5455

約数の個数: 24

約数和(自身を含む): 137538816

約数和(自身を除く): 54758241

約数列:

[1, 3, 5, 15, 25, 75, 211, 633, 1055, 3165, 5231, 5275, 15693, 15825, 26155, 78465, 130775, 392325, 1103741, 3311223, 5518705, 16556115, 27593525, 82780575]

約数ペア:

[(1, 82780575), (3, 27593525), (5, 16556115), (15, 5518705), (25, 3311223), (75, 1103741), (211, 392325), (633, 130775), (1055, 78465), (3165, 26155), (5231, 15825), (5275, 15693)]