221697895

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 298853280

約数和(自身を除く): 77155385

約数列:

[1, 5, 29, 31, 37, 43, 145, 155, 185, 215, 899, 961, 1073, 1147, 1247, 1333, 1591, 4495, 4805, 5365, 5735, 6235, 6665, 7955, 27869, 33263, 35557, 38657, 41323, 46139, 49321, 139345, 166315, 177785, 193285, 206615, 230695, 246605, 1031153, 1198367, 1430309, 1528951, 5155765, 5991835, 7151545, 7644755, 44339579, 221697895]

約数ペア:

[(1, 221697895), (5, 44339579), (29, 7644755), (31, 7151545), (37, 5991835), (43, 5155765), (145, 1528951), (155, 1430309), (185, 1198367), (215, 1031153), (899, 246605), (961, 230695), (1073, 206615), (1147, 193285), (1247, 177785), (1333, 166315), (1591, 139345), (4495, 49321), (4805, 46139), (5365, 41323), (5735, 38657), (6235, 35557), (6665, 33263), (7955, 27869)]