68939860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{7643}}^1$

素因数の和:7704

約数の個数: 48

約数和(自身を含む): 161808192

約数和(自身を除く): 92868332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 7643, 9020, 15286, 30572, 38215, 76430, 84073, 152860, 168146, 313363, 336292, 420365, 626726, 840730, 1253452, 1566815, 1681460, 3133630, 3446993, 6267260, 6893986, 13787972, 17234965, 34469930, 68939860]

約数ペア:

[(1, 68939860), (2, 34469930), (4, 17234965), (5, 13787972), (10, 6893986), (11, 6267260), (20, 3446993), (22, 3133630), (41, 1681460), (44, 1566815), (55, 1253452), (82, 840730), (110, 626726), (164, 420365), (205, 336292), (220, 313363), (410, 168146), (451, 152860), (820, 84073), (902, 76430), (1804, 38215), (2255, 30572), (4510, 15286), (7643, 9020)]