181298416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{907}}^1$

素因数の和:990

約数の個数: 60

約数和(自身を含む): 391313496

約数和(自身を除く): 210015080

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 907, 961, 1612, 1814, 1922, 3224, 3628, 3844, 6448, 7256, 7688, 11791, 12493, 14512, 15376, 23582, 24986, 28117, 47164, 49972, 56234, 94328, 99944, 112468, 188656, 199888, 224936, 365521, 449872, 731042, 871627, 1462084, 1743254, 2924168, 3486508, 5848336, 6973016, 11331151, 13946032, 22662302, 45324604, 90649208, 181298416]

約数ペア:

[(1, 181298416), (2, 90649208), (4, 45324604), (8, 22662302), (13, 13946032), (16, 11331151), (26, 6973016), (31, 5848336), (52, 3486508), (62, 2924168), (104, 1743254), (124, 1462084), (208, 871627), (248, 731042), (403, 449872), (496, 365521), (806, 224936), (907, 199888), (961, 188656), (1612, 112468), (1814, 99944), (1922, 94328), (3224, 56234), (3628, 49972), (3844, 47164), (6448, 28117), (7256, 24986), (7688, 23582), (11791, 15376), (12493, 14512)]