20505536

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:477

約数の個数: 56

約数和(自身を含む): 44110656

約数和(自身を除く): 23605120

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 94, 136, 188, 272, 376, 401, 544, 752, 799, 802, 1088, 1504, 1598, 1604, 3008, 3196, 3208, 6392, 6416, 6817, 12784, 12832, 13634, 18847, 25568, 25664, 27268, 37694, 51136, 54536, 75388, 109072, 150776, 218144, 301552, 320399, 436288, 603104, 640798, 1206208, 1281596, 2563192, 5126384, 10252768, 20505536]

約数ペア:

[(1, 20505536), (2, 10252768), (4, 5126384), (8, 2563192), (16, 1281596), (17, 1206208), (32, 640798), (34, 603104), (47, 436288), (64, 320399), (68, 301552), (94, 218144), (136, 150776), (188, 109072), (272, 75388), (376, 54536), (401, 51136), (544, 37694), (752, 27268), (799, 25664), (802, 25568), (1088, 18847), (1504, 13634), (1598, 12832), (1604, 12784), (3008, 6817), (3196, 6416), (3208, 6392)]