2781225

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 5106816

約数和(自身を除く): 2325591

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 263, 423, 705, 789, 1175, 1315, 2115, 2367, 3525, 3945, 6575, 10575, 11835, 12361, 19725, 37083, 59175, 61805, 111249, 185415, 309025, 556245, 927075, 2781225]

約数ペア:

[(1, 2781225), (3, 927075), (5, 556245), (9, 309025), (15, 185415), (25, 111249), (45, 61805), (47, 59175), (75, 37083), (141, 19725), (225, 12361), (235, 11835), (263, 10575), (423, 6575), (705, 3945), (789, 3525), (1175, 2367), (1315, 2115)]