811020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1931}}^1$

素因数の和:1950

約数の個数: 48

約数和(自身を含む): 2596608

約数和(自身を除く): 1785588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1931, 3862, 5793, 7724, 9655, 11586, 13517, 19310, 23172, 27034, 28965, 38620, 40551, 54068, 57930, 67585, 81102, 115860, 135170, 162204, 202755, 270340, 405510, 811020]

約数ペア:

[(1, 811020), (2, 405510), (3, 270340), (4, 202755), (5, 162204), (6, 135170), (7, 115860), (10, 81102), (12, 67585), (14, 57930), (15, 54068), (20, 40551), (21, 38620), (28, 28965), (30, 27034), (35, 23172), (42, 19310), (60, 13517), (70, 11586), (84, 9655), (105, 7724), (140, 5793), (210, 3862), (420, 1931)]