81060160

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^2\times {\mathrm{137}}^1$

素因数の和:240

約数の個数: 84

約数和(自身を含む): 199060308

約数和(自身を除く): 118000148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 137, 160, 172, 215, 274, 320, 344, 430, 548, 685, 688, 860, 1096, 1370, 1376, 1720, 1849, 2192, 2740, 2752, 3440, 3698, 4384, 5480, 5891, 6880, 7396, 8768, 9245, 10960, 11782, 13760, 14792, 18490, 21920, 23564, 29455, 29584, 36980, 43840, 47128, 58910, 59168, 73960, 94256, 117820, 118336, 147920, 188512, 235640, 253313, 295840, 377024, 471280, 506626, 591680, 942560, 1013252, 1266565, 1885120, 2026504, 2533130, 4053008, 5066260, 8106016, 10132520, 16212032, 20265040, 40530080, 81060160]

約数ペア:

[(1, 81060160), (2, 40530080), (4, 20265040), (5, 16212032), (8, 10132520), (10, 8106016), (16, 5066260), (20, 4053008), (32, 2533130), (40, 2026504), (43, 1885120), (64, 1266565), (80, 1013252), (86, 942560), (137, 591680), (160, 506626), (172, 471280), (215, 377024), (274, 295840), (320, 253313), (344, 235640), (430, 188512), (548, 147920), (685, 118336), (688, 117820), (860, 94256), (1096, 73960), (1370, 59168), (1376, 58910), (1720, 47128), (1849, 43840), (2192, 36980), (2740, 29584), (2752, 29455), (3440, 23564), (3698, 21920), (4384, 18490), (5480, 14792), (5891, 13760), (6880, 11782), (7396, 10960), (8768, 9245)]