78877065

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 128532096

約数和(自身を除く): 49655031

約数列:

[1, 3, 5, 15, 131, 137, 293, 393, 411, 655, 685, 879, 1465, 1965, 2055, 4395, 17947, 38383, 40141, 53841, 89735, 115149, 120423, 191915, 200705, 269205, 575745, 602115, 5258471, 15775413, 26292355, 78877065]

約数ペア:

[(1, 78877065), (3, 26292355), (5, 15775413), (15, 5258471), (131, 602115), (137, 575745), (293, 269205), (393, 200705), (411, 191915), (655, 120423), (685, 115149), (879, 89735), (1465, 53841), (1965, 40141), (2055, 38383), (4395, 17947)]