20061580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1861}}^1$

素因数の和:1895

約数の個数: 72

約数和(自身を含む): 53491536

約数和(自身を除く): 33429956

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1861, 2156, 2695, 3722, 5390, 7444, 9305, 10780, 13027, 18610, 20471, 26054, 37220, 40942, 52108, 65135, 81884, 91189, 102355, 130270, 143297, 182378, 204710, 260540, 286594, 364756, 409420, 455945, 573188, 716485, 911890, 1003079, 1432970, 1823780, 2006158, 2865940, 4012316, 5015395, 10030790, 20061580]

約数ペア:

[(1, 20061580), (2, 10030790), (4, 5015395), (5, 4012316), (7, 2865940), (10, 2006158), (11, 1823780), (14, 1432970), (20, 1003079), (22, 911890), (28, 716485), (35, 573188), (44, 455945), (49, 409420), (55, 364756), (70, 286594), (77, 260540), (98, 204710), (110, 182378), (140, 143297), (154, 130270), (196, 102355), (220, 91189), (245, 81884), (308, 65135), (385, 52108), (490, 40942), (539, 37220), (770, 26054), (980, 20471), (1078, 18610), (1540, 13027), (1861, 10780), (2156, 9305), (2695, 7444), (3722, 5390)]