18240145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 28344960

約数和(自身を除く): 10104815

約数列:

[1, 5, 7, 11, 35, 55, 59, 73, 77, 121, 295, 365, 385, 413, 511, 605, 649, 803, 847, 2065, 2555, 3245, 4015, 4235, 4307, 4543, 5621, 7139, 8833, 21535, 22715, 28105, 30149, 35695, 44165, 47377, 49973, 61831, 150745, 236885, 249865, 309155, 331639, 521147, 1658195, 2605735, 3648029, 18240145]

約数ペア:

[(1, 18240145), (5, 3648029), (7, 2605735), (11, 1658195), (35, 521147), (55, 331639), (59, 309155), (73, 249865), (77, 236885), (121, 150745), (295, 61831), (365, 49973), (385, 47377), (413, 44165), (511, 35695), (605, 30149), (649, 28105), (803, 22715), (847, 21535), (2065, 8833), (2555, 7139), (3245, 5621), (4015, 4543), (4235, 4307)]