81280575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19013}}^1$

素因数の和:19048

約数の個数: 36

約数和(自身を含む): 153252840

約数和(自身を除く): 71972265

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 19013, 57039, 95065, 171117, 285195, 361247, 475325, 855585, 1083741, 1425975, 1806235, 3251223, 4277925, 5418705, 9031175, 16256115, 27093525, 81280575]

約数ペア:

[(1, 81280575), (3, 27093525), (5, 16256115), (9, 9031175), (15, 5418705), (19, 4277925), (25, 3251223), (45, 1806235), (57, 1425975), (75, 1083741), (95, 855585), (171, 475325), (225, 361247), (285, 285195), (475, 171117), (855, 95065), (1425, 57039), (4275, 19013)]