19727776

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 41549760

約数和(自身を除く): 21821984

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 71, 76, 142, 152, 284, 304, 457, 568, 608, 914, 1136, 1349, 1828, 2272, 2698, 3656, 5396, 7312, 8683, 10792, 14624, 17366, 21584, 32447, 34732, 43168, 64894, 69464, 129788, 138928, 259576, 277856, 519152, 616493, 1038304, 1232986, 2465972, 4931944, 9863888, 19727776]

約数ペア:

[(1, 19727776), (2, 9863888), (4, 4931944), (8, 2465972), (16, 1232986), (19, 1038304), (32, 616493), (38, 519152), (71, 277856), (76, 259576), (142, 138928), (152, 129788), (284, 69464), (304, 64894), (457, 43168), (568, 34732), (608, 32447), (914, 21584), (1136, 17366), (1349, 14624), (1828, 10792), (2272, 8683), (2698, 7312), (3656, 5396)]