8287180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 19192320

約数和(自身を除く): 10905140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 271, 278, 542, 556, 695, 1084, 1355, 1390, 1529, 2710, 2780, 2981, 3058, 5420, 5962, 6116, 7645, 11924, 14905, 15290, 29810, 30580, 37669, 59620, 75338, 150676, 188345, 376690, 414359, 753380, 828718, 1657436, 2071795, 4143590, 8287180]

約数ペア:

[(1, 8287180), (2, 4143590), (4, 2071795), (5, 1657436), (10, 828718), (11, 753380), (20, 414359), (22, 376690), (44, 188345), (55, 150676), (110, 75338), (139, 59620), (220, 37669), (271, 30580), (278, 29810), (542, 15290), (556, 14905), (695, 11924), (1084, 7645), (1355, 6116), (1390, 5962), (1529, 5420), (2710, 3058), (2780, 2981)]