27811060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 61992000

約数和(自身を除く): 34180940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 326, 380, 449, 652, 815, 898, 1630, 1796, 2245, 3097, 3260, 4490, 6194, 8531, 8980, 12388, 15485, 17062, 30970, 34124, 42655, 61940, 73187, 85310, 146374, 170620, 292748, 365935, 731870, 1390553, 1463740, 2781106, 5562212, 6952765, 13905530, 27811060]

約数ペア:

[(1, 27811060), (2, 13905530), (4, 6952765), (5, 5562212), (10, 2781106), (19, 1463740), (20, 1390553), (38, 731870), (76, 365935), (95, 292748), (163, 170620), (190, 146374), (326, 85310), (380, 73187), (449, 61940), (652, 42655), (815, 34124), (898, 30970), (1630, 17062), (1796, 15485), (2245, 12388), (3097, 8980), (3260, 8531), (4490, 6194)]