81863744

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:403

約数の個数: 56

約数和(自身を含む): 168176448

約数和(自身を除く): 86312704

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 151, 172, 197, 302, 344, 394, 604, 688, 788, 1208, 1376, 1576, 2416, 2752, 3152, 4832, 6304, 6493, 8471, 9664, 12608, 12986, 16942, 25972, 29747, 33884, 51944, 59494, 67768, 103888, 118988, 135536, 207776, 237976, 271072, 415552, 475952, 542144, 951904, 1279121, 1903808, 2558242, 5116484, 10232968, 20465936, 40931872, 81863744]

約数ペア:

[(1, 81863744), (2, 40931872), (4, 20465936), (8, 10232968), (16, 5116484), (32, 2558242), (43, 1903808), (64, 1279121), (86, 951904), (151, 542144), (172, 475952), (197, 415552), (302, 271072), (344, 237976), (394, 207776), (604, 135536), (688, 118988), (788, 103888), (1208, 67768), (1376, 59494), (1576, 51944), (2416, 33884), (2752, 29747), (3152, 25972), (4832, 16942), (6304, 12986), (6493, 12608), (8471, 9664)]