20971572860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1\times {\mathrm{3793}}^1$

素因数の和:4423

約数の個数: 96

約数和(自身を含む): 51129036672

約数和(自身を除く): 30157463812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 541, 730, 1022, 1082, 1460, 2044, 2164, 2555, 2705, 3787, 3793, 5110, 5410, 7574, 7586, 10220, 10820, 15148, 15172, 18935, 18965, 26551, 37870, 37930, 39493, 53102, 75740, 75860, 78986, 106204, 132755, 157972, 197465, 265510, 276451, 276889, 394930, 531020, 552902, 553778, 789860, 1105804, 1107556, 1382255, 1384445, 1938223, 2052013, 2764510, 2768890, 3876446, 4104026, 5529020, 5537780, 7752892, 8208052, 9691115, 10260065, 14364091, 19382230, 20520130, 28728182, 38764460, 41040260, 57456364, 71820455, 143640910, 149796949, 287281820, 299593898, 599187796, 748984745, 1048578643, 1497969490, 2097157286, 2995938980, 4194314572, 5242893215, 10485786430, 20971572860]

約数ペア:

[(1, 20971572860), (2, 10485786430), (4, 5242893215), (5, 4194314572), (7, 2995938980), (10, 2097157286), (14, 1497969490), (20, 1048578643), (28, 748984745), (35, 599187796), (70, 299593898), (73, 287281820), (140, 149796949), (146, 143640910), (292, 71820455), (365, 57456364), (511, 41040260), (541, 38764460), (730, 28728182), (1022, 20520130), (1082, 19382230), (1460, 14364091), (2044, 10260065), (2164, 9691115), (2555, 8208052), (2705, 7752892), (3787, 5537780), (3793, 5529020), (5110, 4104026), (5410, 3876446), (7574, 2768890), (7586, 2764510), (10220, 2052013), (10820, 1938223), (15148, 1384445), (15172, 1382255), (18935, 1107556), (18965, 1105804), (26551, 789860), (37870, 553778), (37930, 552902), (39493, 531020), (53102, 394930), (75740, 276889), (75860, 276451), (78986, 265510), (106204, 197465), (132755, 157972)]