1809220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12923}}^1$

素因数の和:12939

約数の個数: 24

約数和(自身を含む): 4342464

約数和(自身を除く): 2533244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12923, 25846, 51692, 64615, 90461, 129230, 180922, 258460, 361844, 452305, 904610, 1809220]

約数ペア:

[(1, 1809220), (2, 904610), (4, 452305), (5, 361844), (7, 258460), (10, 180922), (14, 129230), (20, 90461), (28, 64615), (35, 51692), (70, 25846), (140, 12923)]