81731688

素因数分解:

$2^3\times 3^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 208560000

約数和(自身を除く): 126828312

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 109, 157, 199, 218, 314, 327, 398, 436, 471, 597, 628, 654, 796, 872, 942, 1194, 1256, 1308, 1592, 1884, 2388, 2616, 3768, 4776, 17113, 21691, 31243, 34226, 43382, 51339, 62486, 65073, 68452, 86764, 93729, 102678, 124972, 130146, 136904, 173528, 187458, 205356, 249944, 260292, 374916, 410712, 520584, 749832, 3405487, 6810974, 10216461, 13621948, 20432922, 27243896, 40865844, 81731688]

約数ペア:

[(1, 81731688), (2, 40865844), (3, 27243896), (4, 20432922), (6, 13621948), (8, 10216461), (12, 6810974), (24, 3405487), (109, 749832), (157, 520584), (199, 410712), (218, 374916), (314, 260292), (327, 249944), (398, 205356), (436, 187458), (471, 173528), (597, 136904), (628, 130146), (654, 124972), (796, 102678), (872, 93729), (942, 86764), (1194, 68452), (1256, 65073), (1308, 62486), (1592, 51339), (1884, 43382), (2388, 34226), (2616, 31243), (3768, 21691), (4776, 17113)]