28449925

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 43604352

約数和(自身を除く): 15154427

約数列:

[1, 5, 7, 17, 25, 35, 73, 85, 119, 131, 175, 365, 425, 511, 595, 655, 917, 1241, 1825, 2227, 2555, 2975, 3275, 4585, 6205, 8687, 9563, 11135, 12775, 15589, 22925, 31025, 43435, 47815, 55675, 66941, 77945, 162571, 217175, 239075, 334705, 389725, 812855, 1137997, 1673525, 4064275, 5689985, 28449925]

約数ペア:

[(1, 28449925), (5, 5689985), (7, 4064275), (17, 1673525), (25, 1137997), (35, 812855), (73, 389725), (85, 334705), (119, 239075), (131, 217175), (175, 162571), (365, 77945), (425, 66941), (511, 55675), (595, 47815), (655, 43435), (917, 31025), (1241, 22925), (1825, 15589), (2227, 12775), (2555, 11135), (2975, 9563), (3275, 8687), (4585, 6205)]