20494725

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^2$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 35685216

約数和(自身を除く): 15190491

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 109, 115, 327, 345, 545, 575, 1635, 1725, 2507, 2725, 7521, 8175, 11881, 12535, 35643, 37605, 59405, 62675, 178215, 188025, 273263, 297025, 819789, 891075, 1366315, 4098945, 6831575, 20494725]

約数ペア:

[(1, 20494725), (3, 6831575), (5, 4098945), (15, 1366315), (23, 891075), (25, 819789), (69, 297025), (75, 273263), (109, 188025), (115, 178215), (327, 62675), (345, 59405), (545, 37605), (575, 35643), (1635, 12535), (1725, 11881), (2507, 8175), (2725, 7521)]