13187500

素因数分解:

$2^2\times 5^6\times {\mathrm{211}}^1$

素因数の和:245

約数の個数: 42

約数和(自身を含む): 28984004

約数和(自身を除く): 15796504

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 211, 250, 422, 500, 625, 844, 1055, 1250, 2110, 2500, 3125, 4220, 5275, 6250, 10550, 12500, 15625, 21100, 26375, 31250, 52750, 62500, 105500, 131875, 263750, 527500, 659375, 1318750, 2637500, 3296875, 6593750, 13187500]

約数ペア:

[(1, 13187500), (2, 6593750), (4, 3296875), (5, 2637500), (10, 1318750), (20, 659375), (25, 527500), (50, 263750), (100, 131875), (125, 105500), (211, 62500), (250, 52750), (422, 31250), (500, 26375), (625, 21100), (844, 15625), (1055, 12500), (1250, 10550), (2110, 6250), (2500, 5275), (3125, 4220)]