20108340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15959}}^1$

素因数の和:15981

約数の個数: 72

約数和(自身を含む): 69713280

約数和(自身を除く): 49604940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15959, 31918, 47877, 63836, 79795, 95754, 111713, 143631, 159590, 191508, 223426, 239385, 287262, 319180, 335139, 446852, 478770, 558565, 574524, 670278, 718155, 957540, 1005417, 1117130, 1340556, 1436310, 1675695, 2010834, 2234260, 2872620, 3351390, 4021668, 5027085, 6702780, 10054170, 20108340]

約数ペア:

[(1, 20108340), (2, 10054170), (3, 6702780), (4, 5027085), (5, 4021668), (6, 3351390), (7, 2872620), (9, 2234260), (10, 2010834), (12, 1675695), (14, 1436310), (15, 1340556), (18, 1117130), (20, 1005417), (21, 957540), (28, 718155), (30, 670278), (35, 574524), (36, 558565), (42, 478770), (45, 446852), (60, 335139), (63, 319180), (70, 287262), (84, 239385), (90, 223426), (105, 191508), (126, 159590), (140, 143631), (180, 111713), (210, 95754), (252, 79795), (315, 63836), (420, 47877), (630, 31918), (1260, 15959)]