620720575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{11149}}^1$

素因数の和:11307

約数の個数: 24

約数和(自身を含む): 821264400

約数和(自身を除く): 200543825

約数列:

[1, 5, 17, 25, 85, 131, 425, 655, 2227, 3275, 11135, 11149, 55675, 55745, 189533, 278725, 947665, 1460519, 4738325, 7302595, 24828823, 36512975, 124144115, 620720575]

約数ペア:

[(1, 620720575), (5, 124144115), (17, 36512975), (25, 24828823), (85, 7302595), (131, 4738325), (425, 1460519), (655, 947665), (2227, 278725), (3275, 189533), (11135, 55745), (11149, 55675)]