7790020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{7949}}^1$

素因数の和:7972

約数の個数: 36

約数和(自身を含む): 19032300

約数和(自身を除く): 11242280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 7949, 15898, 31796, 39745, 55643, 79490, 111286, 158980, 222572, 278215, 389501, 556430, 779002, 1112860, 1558004, 1947505, 3895010, 7790020]

約数ペア:

[(1, 7790020), (2, 3895010), (4, 1947505), (5, 1558004), (7, 1112860), (10, 779002), (14, 556430), (20, 389501), (28, 278215), (35, 222572), (49, 158980), (70, 111286), (98, 79490), (140, 55643), (196, 39745), (245, 31796), (490, 15898), (980, 7949)]