42906820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1931}}^1$

素因数の和:2052

約数の個数: 48

約数和(自身を含む): 99320256

約数和(自身を除く): 56413436

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 1931, 2020, 2222, 3862, 4444, 5555, 7724, 9655, 11110, 19310, 21241, 22220, 38620, 42482, 84964, 106205, 195031, 212410, 390062, 424820, 780124, 975155, 1950310, 2145341, 3900620, 4290682, 8581364, 10726705, 21453410, 42906820]

約数ペア:

[(1, 42906820), (2, 21453410), (4, 10726705), (5, 8581364), (10, 4290682), (11, 3900620), (20, 2145341), (22, 1950310), (44, 975155), (55, 780124), (101, 424820), (110, 390062), (202, 212410), (220, 195031), (404, 106205), (505, 84964), (1010, 42482), (1111, 38620), (1931, 22220), (2020, 21241), (2222, 19310), (3862, 11110), (4444, 9655), (5555, 7724)]