77720020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{555143}}^1$

素因数の和:555159

約数の個数: 24

約数和(自身を含む): 186528384

約数和(自身を除く): 108808364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 555143, 1110286, 2220572, 2775715, 3886001, 5551430, 7772002, 11102860, 15544004, 19430005, 38860010, 77720020]

約数ペア:

[(1, 77720020), (2, 38860010), (4, 19430005), (5, 15544004), (7, 11102860), (10, 7772002), (14, 5551430), (20, 3886001), (28, 2775715), (35, 2220572), (70, 1110286), (140, 555143)]