251957840

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{24799}}^1$

素因数の和:24939

約数の個数: 40

約数和(自身を含む): 590438400

約数和(自身を除く): 338480560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 24799, 49598, 99196, 123995, 198392, 247990, 396784, 495980, 991960, 1983920, 3149473, 6298946, 12597892, 15747365, 25195784, 31494730, 50391568, 62989460, 125978920, 251957840]

約数ペア:

[(1, 251957840), (2, 125978920), (4, 62989460), (5, 50391568), (8, 31494730), (10, 25195784), (16, 15747365), (20, 12597892), (40, 6298946), (80, 3149473), (127, 1983920), (254, 991960), (508, 495980), (635, 396784), (1016, 247990), (1270, 198392), (2032, 123995), (2540, 99196), (5080, 49598), (10160, 24799)]