55417780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2311}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 128177280

約数和(自身を除く): 72759500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2311, 2398, 4622, 4796, 5995, 9244, 11555, 11990, 23110, 23980, 25421, 46220, 50842, 101684, 127105, 251899, 254210, 503798, 508420, 1007596, 1259495, 2518990, 2770889, 5037980, 5541778, 11083556, 13854445, 27708890, 55417780]

約数ペア:

[(1, 55417780), (2, 27708890), (4, 13854445), (5, 11083556), (10, 5541778), (11, 5037980), (20, 2770889), (22, 2518990), (44, 1259495), (55, 1007596), (109, 508420), (110, 503798), (218, 254210), (220, 251899), (436, 127105), (545, 101684), (1090, 50842), (1199, 46220), (2180, 25421), (2311, 23980), (2398, 23110), (4622, 11990), (4796, 11555), (5995, 9244)]