90012025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 126956160

約数和(自身を除く): 36944135

約数列:

[1, 5, 17, 19, 25, 71, 85, 95, 157, 323, 355, 425, 475, 785, 1207, 1349, 1615, 1775, 2669, 2983, 3925, 6035, 6745, 8075, 11147, 13345, 14915, 22933, 30175, 33725, 50711, 55735, 66725, 74575, 114665, 189499, 211793, 253555, 278675, 573325, 947495, 1058965, 1267775, 3600481, 4737475, 5294825, 18002405, 90012025]

約数ペア:

[(1, 90012025), (5, 18002405), (17, 5294825), (19, 4737475), (25, 3600481), (71, 1267775), (85, 1058965), (95, 947495), (157, 573325), (323, 278675), (355, 253555), (425, 211793), (475, 189499), (785, 114665), (1207, 74575), (1349, 66725), (1615, 55735), (1775, 50711), (2669, 33725), (2983, 30175), (3925, 22933), (6035, 14915), (6745, 13345), (8075, 11147)]