19956272

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:226

約数の個数: 80

約数和(自身を含む): 47235072

約数和(自身を除く): 27278800

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 61, 92, 112, 122, 127, 161, 184, 244, 254, 322, 368, 427, 488, 508, 644, 854, 889, 976, 1016, 1288, 1403, 1708, 1778, 2032, 2576, 2806, 2921, 3416, 3556, 5612, 5842, 6832, 7112, 7747, 9821, 11224, 11684, 14224, 15494, 19642, 20447, 22448, 23368, 30988, 39284, 40894, 46736, 54229, 61976, 78568, 81788, 108458, 123952, 157136, 163576, 178181, 216916, 327152, 356362, 433832, 712724, 867664, 1247267, 1425448, 2494534, 2850896, 4989068, 9978136, 19956272]

約数ペア:

[(1, 19956272), (2, 9978136), (4, 4989068), (7, 2850896), (8, 2494534), (14, 1425448), (16, 1247267), (23, 867664), (28, 712724), (46, 433832), (56, 356362), (61, 327152), (92, 216916), (112, 178181), (122, 163576), (127, 157136), (161, 123952), (184, 108458), (244, 81788), (254, 78568), (322, 61976), (368, 54229), (427, 46736), (488, 40894), (508, 39284), (644, 30988), (854, 23368), (889, 22448), (976, 20447), (1016, 19642), (1288, 15494), (1403, 14224), (1708, 11684), (1778, 11224), (2032, 9821), (2576, 7747), (2806, 7112), (2921, 6832), (3416, 5842), (3556, 5612)]