394660120

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{77689}}^1$

素因数の和:77827

約数の個数: 32

約数和(自身を含む): 894988800

約数和(自身を除く): 500328680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 77689, 155378, 310756, 388445, 621512, 776890, 1553780, 3107560, 9866503, 19733006, 39466012, 49332515, 78932024, 98665030, 197330060, 394660120]

約数ペア:

[(1, 394660120), (2, 197330060), (4, 98665030), (5, 78932024), (8, 49332515), (10, 39466012), (20, 19733006), (40, 9866503), (127, 3107560), (254, 1553780), (508, 776890), (635, 621512), (1016, 388445), (1270, 310756), (2540, 155378), (5080, 77689)]