80619520

素因数分解:

$2^{11}\times 5^1\times {\mathrm{7873}}^1$

素因数の和:7900

約数の個数: 48

約数和(自身を含む): 193464180

約数和(自身を除く): 112844660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 7873, 10240, 15746, 31492, 39365, 62984, 78730, 125968, 157460, 251936, 314920, 503872, 629840, 1007744, 1259680, 2015488, 2519360, 4030976, 5038720, 8061952, 10077440, 16123904, 20154880, 40309760, 80619520]

約数ペア:

[(1, 80619520), (2, 40309760), (4, 20154880), (5, 16123904), (8, 10077440), (10, 8061952), (16, 5038720), (20, 4030976), (32, 2519360), (40, 2015488), (64, 1259680), (80, 1007744), (128, 629840), (160, 503872), (256, 314920), (320, 251936), (512, 157460), (640, 125968), (1024, 78730), (1280, 62984), (2048, 39365), (2560, 31492), (5120, 15746), (7873, 10240)]