81344992

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1991

約数の個数: 48

約数和(自身を含む): 169247232

約数和(自身を除く): 87902240

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 496, 688, 992, 1333, 1376, 1907, 2666, 3814, 5332, 7628, 10664, 15256, 21328, 30512, 42656, 59117, 61024, 82001, 118234, 164002, 236468, 328004, 472936, 656008, 945872, 1312016, 1891744, 2542031, 2624032, 5084062, 10168124, 20336248, 40672496, 81344992]

約数ペア:

[(1, 81344992), (2, 40672496), (4, 20336248), (8, 10168124), (16, 5084062), (31, 2624032), (32, 2542031), (43, 1891744), (62, 1312016), (86, 945872), (124, 656008), (172, 472936), (248, 328004), (344, 236468), (496, 164002), (688, 118234), (992, 82001), (1333, 61024), (1376, 59117), (1907, 42656), (2666, 30512), (3814, 21328), (5332, 15256), (7628, 10664)]