25721740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2719}}^1$

素因数の和:2782

約数の個数: 48

約数和(自身を含む): 60318720

約数和(自身を除く): 34596980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 2719, 4730, 5438, 9460, 10876, 13595, 27190, 29909, 54380, 59818, 116917, 119636, 149545, 233834, 299090, 467668, 584585, 598180, 1169170, 1286087, 2338340, 2572174, 5144348, 6430435, 12860870, 25721740]

約数ペア:

[(1, 25721740), (2, 12860870), (4, 6430435), (5, 5144348), (10, 2572174), (11, 2338340), (20, 1286087), (22, 1169170), (43, 598180), (44, 584585), (55, 467668), (86, 299090), (110, 233834), (172, 149545), (215, 119636), (220, 116917), (430, 59818), (473, 54380), (860, 29909), (946, 27190), (1892, 13595), (2365, 10876), (2719, 9460), (4730, 5438)]