1379440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 3289968

約数和(自身を除く): 1910528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 401, 430, 688, 802, 860, 1604, 1720, 2005, 3208, 3440, 4010, 6416, 8020, 16040, 17243, 32080, 34486, 68972, 86215, 137944, 172430, 275888, 344860, 689720, 1379440]

約数ペア:

[(1, 1379440), (2, 689720), (4, 344860), (5, 275888), (8, 172430), (10, 137944), (16, 86215), (20, 68972), (40, 34486), (43, 32080), (80, 17243), (86, 16040), (172, 8020), (215, 6416), (344, 4010), (401, 3440), (430, 3208), (688, 2005), (802, 1720), (860, 1604)]