81998875

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3023}}^1$

素因数の和:3076

約数の個数: 32

約数和(自身を含む): 120766464

約数和(自身を除く): 38767589

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 775, 875, 1085, 3023, 3875, 5425, 15115, 21161, 27125, 75575, 93713, 105805, 377875, 468565, 529025, 655991, 2342825, 2645125, 3279955, 11714125, 16399775, 81998875]

約数ペア:

[(1, 81998875), (5, 16399775), (7, 11714125), (25, 3279955), (31, 2645125), (35, 2342825), (125, 655991), (155, 529025), (175, 468565), (217, 377875), (775, 105805), (875, 93713), (1085, 75575), (3023, 27125), (3875, 21161), (5425, 15115)]