19860776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:103

約数の個数: 72

約数和(自身を含む): 44245530

約数和(自身を除く): 24384754

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 361, 437, 494, 529, 598, 722, 874, 988, 1058, 1196, 1444, 1748, 1976, 2116, 2392, 2888, 3496, 4232, 4693, 5681, 6877, 8303, 9386, 10051, 11362, 13754, 16606, 18772, 20102, 22724, 27508, 33212, 37544, 40204, 45448, 55016, 66424, 80408, 107939, 130663, 190969, 215878, 261326, 381938, 431756, 522652, 763876, 863512, 1045304, 1527752, 2482597, 4965194, 9930388, 19860776]

約数ペア:

[(1, 19860776), (2, 9930388), (4, 4965194), (8, 2482597), (13, 1527752), (19, 1045304), (23, 863512), (26, 763876), (38, 522652), (46, 431756), (52, 381938), (76, 261326), (92, 215878), (104, 190969), (152, 130663), (184, 107939), (247, 80408), (299, 66424), (361, 55016), (437, 45448), (494, 40204), (529, 37544), (598, 33212), (722, 27508), (874, 22724), (988, 20102), (1058, 18772), (1196, 16606), (1444, 13754), (1748, 11362), (1976, 10051), (2116, 9386), (2392, 8303), (2888, 6877), (3496, 5681), (4232, 4693)]