20720349735

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^2\times {\mathrm{10463}}^1$

素因数の和:10624

約数の個数: 48

約数和(自身を含む): 34512113664

約数和(自身を除く): 13791763929

約数列:

[1, 3, 5, 15, 47, 53, 141, 159, 235, 265, 705, 795, 2491, 2809, 7473, 8427, 10463, 12455, 14045, 31389, 37365, 42135, 52315, 132023, 156945, 396069, 491761, 554539, 660115, 1475283, 1663617, 1980345, 2458805, 2772695, 7376415, 8318085, 26063333, 29390567, 78189999, 88171701, 130316665, 146952835, 390949995, 440858505, 1381356649, 4144069947, 6906783245, 20720349735]

約数ペア:

[(1, 20720349735), (3, 6906783245), (5, 4144069947), (15, 1381356649), (47, 440858505), (53, 390949995), (141, 146952835), (159, 130316665), (235, 88171701), (265, 78189999), (705, 29390567), (795, 26063333), (2491, 8318085), (2809, 7376415), (7473, 2772695), (8427, 2458805), (10463, 1980345), (12455, 1663617), (14045, 1475283), (31389, 660115), (37365, 554539), (42135, 491761), (52315, 396069), (132023, 156945)]