20728540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148061}}^1$

素因数の和:148077

約数の個数: 24

約数和(自身を含む): 49748832

約数和(自身を除く): 29020292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148061, 296122, 592244, 740305, 1036427, 1480610, 2072854, 2961220, 4145708, 5182135, 10364270, 20728540]

約数ペア:

[(1, 20728540), (2, 10364270), (4, 5182135), (5, 4145708), (7, 2961220), (10, 2072854), (14, 1480610), (20, 1036427), (28, 740305), (35, 592244), (70, 296122), (140, 148061)]