156913970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20143}}^1$

素因数の和:20210

約数の個数: 32

約数和(自身を含む): 304577280

約数和(自身を除く): 147663310

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 3895, 7790, 20143, 40286, 100715, 201430, 382717, 765434, 825863, 1651726, 1913585, 3827170, 4129315, 8258630, 15691397, 31382794, 78456985, 156913970]

約数ペア:

[(1, 156913970), (2, 78456985), (5, 31382794), (10, 15691397), (19, 8258630), (38, 4129315), (41, 3827170), (82, 1913585), (95, 1651726), (190, 825863), (205, 765434), (410, 382717), (779, 201430), (1558, 100715), (3895, 40286), (7790, 20143)]