64840448

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 140398272

約数和(自身を除く): 75557824

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 94, 128, 136, 188, 256, 272, 317, 376, 544, 634, 752, 799, 1088, 1268, 1504, 1598, 2176, 2536, 3008, 3196, 4352, 5072, 5389, 6016, 6392, 10144, 10778, 12032, 12784, 14899, 20288, 21556, 25568, 29798, 40576, 43112, 51136, 59596, 81152, 86224, 102272, 119192, 172448, 204544, 238384, 253283, 344896, 476768, 506566, 689792, 953536, 1013132, 1379584, 1907072, 2026264, 3814144, 4052528, 8105056, 16210112, 32420224, 64840448]

約数ペア:

[(1, 64840448), (2, 32420224), (4, 16210112), (8, 8105056), (16, 4052528), (17, 3814144), (32, 2026264), (34, 1907072), (47, 1379584), (64, 1013132), (68, 953536), (94, 689792), (128, 506566), (136, 476768), (188, 344896), (256, 253283), (272, 238384), (317, 204544), (376, 172448), (544, 119192), (634, 102272), (752, 86224), (799, 81152), (1088, 59596), (1268, 51136), (1504, 43112), (1598, 40576), (2176, 29798), (2536, 25568), (3008, 21556), (3196, 20288), (4352, 14899), (5072, 12784), (5389, 12032), (6016, 10778), (6392, 10144)]