20559448

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 28469672

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 911, 1612, 1736, 1822, 2821, 3224, 3644, 5642, 6377, 7288, 11284, 11843, 12754, 22568, 23686, 25508, 28241, 47372, 51016, 56482, 82901, 94744, 112964, 165802, 197687, 225928, 331604, 367133, 395374, 663208, 734266, 790748, 1468532, 1581496, 2569931, 2937064, 5139862, 10279724, 20559448]

約数ペア:

[(1, 20559448), (2, 10279724), (4, 5139862), (7, 2937064), (8, 2569931), (13, 1581496), (14, 1468532), (26, 790748), (28, 734266), (31, 663208), (52, 395374), (56, 367133), (62, 331604), (91, 225928), (104, 197687), (124, 165802), (182, 112964), (217, 94744), (248, 82901), (364, 56482), (403, 51016), (434, 47372), (728, 28241), (806, 25508), (868, 23686), (911, 22568), (1612, 12754), (1736, 11843), (1822, 11284), (2821, 7288), (3224, 6377), (3644, 5642)]