20444368

素因数分解:

$2^4\times 7^2\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:404

約数の個数: 60

約数和(自身を含む): 46754820

約数和(自身を除く): 26310452

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 89, 98, 112, 178, 196, 293, 356, 392, 586, 623, 712, 784, 1172, 1246, 1424, 2051, 2344, 2492, 4102, 4361, 4688, 4984, 8204, 8722, 9968, 14357, 16408, 17444, 26077, 28714, 32816, 34888, 52154, 57428, 69776, 104308, 114856, 182539, 208616, 229712, 365078, 417232, 730156, 1277773, 1460312, 2555546, 2920624, 5111092, 10222184, 20444368]

約数ペア:

[(1, 20444368), (2, 10222184), (4, 5111092), (7, 2920624), (8, 2555546), (14, 1460312), (16, 1277773), (28, 730156), (49, 417232), (56, 365078), (89, 229712), (98, 208616), (112, 182539), (178, 114856), (196, 104308), (293, 69776), (356, 57428), (392, 52154), (586, 34888), (623, 32816), (712, 28714), (784, 26077), (1172, 17444), (1246, 16408), (1424, 14357), (2051, 9968), (2344, 8722), (2492, 8204), (4102, 4984), (4361, 4688)]