20308960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18133}}^1$

素因数の和:18155

約数の個数: 48

約数和(自身を含む): 54837216

約数和(自身を除く): 34528256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18133, 36266, 72532, 90665, 126931, 145064, 181330, 253862, 290128, 362660, 507724, 580256, 634655, 725320, 1015448, 1269310, 1450640, 2030896, 2538620, 2901280, 4061792, 5077240, 10154480, 20308960]

約数ペア:

[(1, 20308960), (2, 10154480), (4, 5077240), (5, 4061792), (7, 2901280), (8, 2538620), (10, 2030896), (14, 1450640), (16, 1269310), (20, 1015448), (28, 725320), (32, 634655), (35, 580256), (40, 507724), (56, 362660), (70, 290128), (80, 253862), (112, 181330), (140, 145064), (160, 126931), (224, 90665), (280, 72532), (560, 36266), (1120, 18133)]