19662440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70223}}^1$

素因数の和:70241

約数の個数: 32

約数和(自身を含む): 50561280

約数和(自身を除く): 30898840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70223, 140446, 280892, 351115, 491561, 561784, 702230, 983122, 1404460, 1966244, 2457805, 2808920, 3932488, 4915610, 9831220, 19662440]

約数ペア:

[(1, 19662440), (2, 9831220), (4, 4915610), (5, 3932488), (7, 2808920), (8, 2457805), (10, 1966244), (14, 1404460), (20, 983122), (28, 702230), (35, 561784), (40, 491561), (56, 351115), (70, 280892), (140, 140446), (280, 70223)]