85028020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{55213}}^1$

素因数の和:55240

約数の個数: 48

約数和(自身を含む): 222622848

約数和(自身を除く): 137594828

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 55213, 110426, 220852, 276065, 386491, 552130, 607343, 772982, 1104260, 1214686, 1545964, 1932455, 2429372, 3036715, 3864910, 4251401, 6073430, 7729820, 8502802, 12146860, 17005604, 21257005, 42514010, 85028020]

約数ペア:

[(1, 85028020), (2, 42514010), (4, 21257005), (5, 17005604), (7, 12146860), (10, 8502802), (11, 7729820), (14, 6073430), (20, 4251401), (22, 3864910), (28, 3036715), (35, 2429372), (44, 1932455), (55, 1545964), (70, 1214686), (77, 1104260), (110, 772982), (140, 607343), (154, 552130), (220, 386491), (308, 276065), (385, 220852), (770, 110426), (1540, 55213)]