128493890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{42689}}^1$

素因数の和:42746

約数の個数: 32

約数和(自身を含む): 270483840

約数和(自身を除く): 141989950

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 42689, 85378, 213445, 298823, 426890, 597646, 1494115, 1835627, 2988230, 3671254, 9178135, 12849389, 18356270, 25698778, 64246945, 128493890]

約数ペア:

[(1, 128493890), (2, 64246945), (5, 25698778), (7, 18356270), (10, 12849389), (14, 9178135), (35, 3671254), (43, 2988230), (70, 1835627), (86, 1494115), (215, 597646), (301, 426890), (430, 298823), (602, 213445), (1505, 85378), (3010, 42689)]