12219280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8039}}^1$

素因数の和:8071

約数の個数: 40

約数和(自身を含む): 29908800

約数和(自身を除く): 17689520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8039, 16078, 32156, 40195, 64312, 80390, 128624, 152741, 160780, 305482, 321560, 610964, 643120, 763705, 1221928, 1527410, 2443856, 3054820, 6109640, 12219280]

約数ペア:

[(1, 12219280), (2, 6109640), (4, 3054820), (5, 2443856), (8, 1527410), (10, 1221928), (16, 763705), (19, 643120), (20, 610964), (38, 321560), (40, 305482), (76, 160780), (80, 152741), (95, 128624), (152, 80390), (190, 64312), (304, 40195), (380, 32156), (760, 16078), (1520, 8039)]