20742224

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 60

約数和(自身を含む): 44327520

約数和(自身を除く): 23585296

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 71, 76, 124, 142, 152, 248, 284, 304, 496, 568, 589, 961, 1136, 1178, 1349, 1922, 2201, 2356, 2698, 3844, 4402, 4712, 5396, 7688, 8804, 9424, 10792, 15376, 17608, 18259, 21584, 35216, 36518, 41819, 68231, 73036, 83638, 136462, 146072, 167276, 272924, 292144, 334552, 545848, 669104, 1091696, 1296389, 2592778, 5185556, 10371112, 20742224]

約数ペア:

[(1, 20742224), (2, 10371112), (4, 5185556), (8, 2592778), (16, 1296389), (19, 1091696), (31, 669104), (38, 545848), (62, 334552), (71, 292144), (76, 272924), (124, 167276), (142, 146072), (152, 136462), (248, 83638), (284, 73036), (304, 68231), (496, 41819), (568, 36518), (589, 35216), (961, 21584), (1136, 18259), (1178, 17608), (1349, 15376), (1922, 10792), (2201, 9424), (2356, 8804), (2698, 7688), (3844, 5396), (4402, 4712)]