66278140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:798

約数の個数: 48

約数和(自身を含む): 143900064

約数和(自身を除く): 77621924

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 410, 524, 617, 655, 820, 1234, 1310, 2468, 2620, 3085, 5371, 6170, 10742, 12340, 21484, 25297, 26855, 50594, 53710, 80827, 101188, 107420, 126485, 161654, 252970, 323308, 404135, 505940, 808270, 1616540, 3313907, 6627814, 13255628, 16569535, 33139070, 66278140]

約数ペア:

[(1, 66278140), (2, 33139070), (4, 16569535), (5, 13255628), (10, 6627814), (20, 3313907), (41, 1616540), (82, 808270), (131, 505940), (164, 404135), (205, 323308), (262, 252970), (410, 161654), (524, 126485), (617, 107420), (655, 101188), (820, 80827), (1234, 53710), (1310, 50594), (2468, 26855), (2620, 25297), (3085, 21484), (5371, 12340), (6170, 10742)]