157440820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1901}}^1$

素因数の和:2052

約数の個数: 48

約数和(自身を含む): 342223056

約数和(自身を除く): 184782236

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 404, 410, 505, 820, 1010, 1901, 2020, 3802, 4141, 7604, 8282, 9505, 16564, 19010, 20705, 38020, 41410, 77941, 82820, 155882, 192001, 311764, 384002, 389705, 768004, 779410, 960005, 1558820, 1920010, 3840020, 7872041, 15744082, 31488164, 39360205, 78720410, 157440820]

約数ペア:

[(1, 157440820), (2, 78720410), (4, 39360205), (5, 31488164), (10, 15744082), (20, 7872041), (41, 3840020), (82, 1920010), (101, 1558820), (164, 960005), (202, 779410), (205, 768004), (404, 389705), (410, 384002), (505, 311764), (820, 192001), (1010, 155882), (1901, 82820), (2020, 77941), (3802, 41410), (4141, 38020), (7604, 20705), (8282, 19010), (9505, 16564)]