56257880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{28703}}^1$

素因数の和:28728

約数の個数: 48

約数和(自身を含む): 147251520

約数和(自身を除く): 90993640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 28703, 57406, 114812, 143515, 200921, 229624, 287030, 401842, 574060, 803684, 1004605, 1148120, 1406447, 1607368, 2009210, 2812894, 4018420, 5625788, 7032235, 8036840, 11251576, 14064470, 28128940, 56257880]

約数ペア:

[(1, 56257880), (2, 28128940), (4, 14064470), (5, 11251576), (7, 8036840), (8, 7032235), (10, 5625788), (14, 4018420), (20, 2812894), (28, 2009210), (35, 1607368), (40, 1406447), (49, 1148120), (56, 1004605), (70, 803684), (98, 574060), (140, 401842), (196, 287030), (245, 229624), (280, 200921), (392, 143515), (490, 114812), (980, 57406), (1960, 28703)]