86904020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{620743}}^1$

素因数の和:620759

約数の個数: 24

約数和(自身を含む): 208569984

約数和(自身を除く): 121665964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 620743, 1241486, 2482972, 3103715, 4345201, 6207430, 8690402, 12414860, 17380804, 21726005, 43452010, 86904020]

約数ペア:

[(1, 86904020), (2, 43452010), (4, 21726005), (5, 17380804), (7, 12414860), (10, 8690402), (14, 6207430), (20, 4345201), (28, 3103715), (35, 2482972), (70, 1241486), (140, 620743)]