138354020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{988243}}^1$

素因数の和:988259

約数の個数: 24

約数和(自身を含む): 332049984

約数和(自身を除く): 193695964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 988243, 1976486, 3952972, 4941215, 6917701, 9882430, 13835402, 19764860, 27670804, 34588505, 69177010, 138354020]

約数ペア:

[(1, 138354020), (2, 69177010), (4, 34588505), (5, 27670804), (7, 19764860), (10, 13835402), (14, 9882430), (20, 6917701), (28, 4941215), (35, 3952972), (70, 1976486), (140, 988243)]