81049220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578923}}^1$

素因数の和:578939

約数の個数: 24

約数和(自身を含む): 194518464

約数和(自身を除く): 113469244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578923, 1157846, 2315692, 2894615, 4052461, 5789230, 8104922, 11578460, 16209844, 20262305, 40524610, 81049220]

約数ペア:

[(1, 81049220), (2, 40524610), (4, 20262305), (5, 16209844), (7, 11578460), (10, 8104922), (14, 5789230), (20, 4052461), (28, 2894615), (35, 2315692), (70, 1157846), (140, 578923)]