28311220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4127}}^1$

素因数の和:4157

約数の個数: 48

約数和(自身を含む): 69350400

約数和(自身を除く): 41039180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4127, 6860, 8254, 16508, 20635, 28889, 41270, 57778, 82540, 115556, 144445, 202223, 288890, 404446, 577780, 808892, 1011115, 1415561, 2022230, 2831122, 4044460, 5662244, 7077805, 14155610, 28311220]

約数ペア:

[(1, 28311220), (2, 14155610), (4, 7077805), (5, 5662244), (7, 4044460), (10, 2831122), (14, 2022230), (20, 1415561), (28, 1011115), (35, 808892), (49, 577780), (70, 404446), (98, 288890), (140, 202223), (196, 144445), (245, 115556), (343, 82540), (490, 57778), (686, 41270), (980, 28889), (1372, 20635), (1715, 16508), (3430, 8254), (4127, 6860)]