19170760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9781}}^1$

素因数の和:9806

約数の個数: 48

約数和(自身を含む): 50181660

約数和(自身を除く): 31010900

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9781, 19562, 39124, 48905, 68467, 78248, 97810, 136934, 195620, 273868, 342335, 391240, 479269, 547736, 684670, 958538, 1369340, 1917076, 2396345, 2738680, 3834152, 4792690, 9585380, 19170760]

約数ペア:

[(1, 19170760), (2, 9585380), (4, 4792690), (5, 3834152), (7, 2738680), (8, 2396345), (10, 1917076), (14, 1369340), (20, 958538), (28, 684670), (35, 547736), (40, 479269), (49, 391240), (56, 342335), (70, 273868), (98, 195620), (140, 136934), (196, 97810), (245, 78248), (280, 68467), (392, 48905), (490, 39124), (980, 19562), (1960, 9781)]