81321604

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 176393728

約数和(自身を除く): 95072124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 364, 628, 1099, 1423, 2041, 2198, 2846, 4082, 4396, 5692, 8164, 9961, 14287, 18499, 19922, 28574, 36998, 39844, 57148, 73996, 129493, 223411, 258986, 446822, 517972, 893644, 1563877, 2904343, 3127754, 5808686, 6255508, 11617372, 20330401, 40660802, 81321604]

約数ペア:

[(1, 81321604), (2, 40660802), (4, 20330401), (7, 11617372), (13, 6255508), (14, 5808686), (26, 3127754), (28, 2904343), (52, 1563877), (91, 893644), (157, 517972), (182, 446822), (314, 258986), (364, 223411), (628, 129493), (1099, 73996), (1423, 57148), (2041, 39844), (2198, 36998), (2846, 28574), (4082, 19922), (4396, 18499), (5692, 14287), (8164, 9961)]