1280451914

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 2363904000

約数和(自身を除く): 1083452086

約数列:

[1, 2, 7, 14, 19, 38, 71, 133, 142, 151, 266, 302, 449, 497, 898, 994, 1057, 1349, 2114, 2698, 2869, 3143, 5738, 6286, 8531, 9443, 10721, 17062, 18886, 20083, 21442, 31879, 40166, 59717, 63758, 67799, 75047, 119434, 135598, 150094, 203699, 223153, 407398, 446306, 474593, 605701, 949186, 1211402, 1288181, 1425893, 2576362, 2851786, 4239907, 4813729, 8479814, 9017267, 9627458, 18034534, 33696103, 67392206, 91460851, 182921702, 640225957, 1280451914]

約数ペア:

[(1, 1280451914), (2, 640225957), (7, 182921702), (14, 91460851), (19, 67392206), (38, 33696103), (71, 18034534), (133, 9627458), (142, 9017267), (151, 8479814), (266, 4813729), (302, 4239907), (449, 2851786), (497, 2576362), (898, 1425893), (994, 1288181), (1057, 1211402), (1349, 949186), (2114, 605701), (2698, 474593), (2869, 446306), (3143, 407398), (5738, 223153), (6286, 203699), (8531, 150094), (9443, 135598), (10721, 119434), (17062, 75047), (18886, 67799), (20083, 63758), (21442, 59717), (31879, 40166)]