18049220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128923}}^1$

素因数の和:128939

約数の個数: 24

約数和(自身を含む): 43318464

約数和(自身を除く): 25269244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128923, 257846, 515692, 644615, 902461, 1289230, 1804922, 2578460, 3609844, 4512305, 9024610, 18049220]

約数ペア:

[(1, 18049220), (2, 9024610), (4, 4512305), (5, 3609844), (7, 2578460), (10, 1804922), (14, 1289230), (20, 902461), (28, 644615), (35, 515692), (70, 257846), (140, 128923)]