81999904

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6907}}^1$

素因数の和:6977

約数の個数: 48

約数和(自身を含む): 188008128

約数和(自身を除く): 106008224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 106, 112, 212, 224, 371, 424, 742, 848, 1484, 1696, 2968, 5936, 6907, 11872, 13814, 27628, 48349, 55256, 96698, 110512, 193396, 221024, 366071, 386792, 732142, 773584, 1464284, 1547168, 2562497, 2928568, 5124994, 5857136, 10249988, 11714272, 20499976, 40999952, 81999904]

約数ペア:

[(1, 81999904), (2, 40999952), (4, 20499976), (7, 11714272), (8, 10249988), (14, 5857136), (16, 5124994), (28, 2928568), (32, 2562497), (53, 1547168), (56, 1464284), (106, 773584), (112, 732142), (212, 386792), (224, 366071), (371, 221024), (424, 193396), (742, 110512), (848, 96698), (1484, 55256), (1696, 48349), (2968, 27628), (5936, 13814), (6907, 11872)]