1261891895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{58679}}^1$

素因数の和:58735

約数の個数: 32

約数和(自身を含む): 1825182720

約数和(自身を除く): 563290825

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1265, 1955, 4301, 21505, 58679, 293395, 645469, 997543, 1349617, 3227345, 4987715, 6748085, 10972973, 14845787, 22943489, 54864865, 74228935, 114717445, 252378379, 1261891895]

約数ペア:

[(1, 1261891895), (5, 252378379), (11, 114717445), (17, 74228935), (23, 54864865), (55, 22943489), (85, 14845787), (115, 10972973), (187, 6748085), (253, 4987715), (391, 3227345), (935, 1349617), (1265, 997543), (1955, 645469), (4301, 293395), (21505, 58679)]