256615216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5903}}^1$

素因数の和:5954

約数の個数: 80

約数和(自身を含む): 614960640

約数和(自身を除く): 358345424

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 494, 572, 836, 988, 1144, 1672, 1976, 2288, 2717, 3344, 3952, 5434, 5903, 10868, 11806, 21736, 23612, 43472, 47224, 64933, 76739, 94448, 112157, 129866, 153478, 224314, 259732, 306956, 448628, 519464, 613912, 844129, 897256, 1038928, 1227824, 1233727, 1458041, 1688258, 1794512, 2467454, 2916082, 3376516, 4934908, 5832164, 6753032, 9869816, 11664328, 13506064, 16038451, 19739632, 23328656, 32076902, 64153804, 128307608, 256615216]

約数ペア:

[(1, 256615216), (2, 128307608), (4, 64153804), (8, 32076902), (11, 23328656), (13, 19739632), (16, 16038451), (19, 13506064), (22, 11664328), (26, 9869816), (38, 6753032), (44, 5832164), (52, 4934908), (76, 3376516), (88, 2916082), (104, 2467454), (143, 1794512), (152, 1688258), (176, 1458041), (208, 1233727), (209, 1227824), (247, 1038928), (286, 897256), (304, 844129), (418, 613912), (494, 519464), (572, 448628), (836, 306956), (988, 259732), (1144, 224314), (1672, 153478), (1976, 129866), (2288, 112157), (2717, 94448), (3344, 76739), (3952, 64933), (5434, 47224), (5903, 43472), (10868, 23612), (11806, 21736)]