20665408

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 56

約数和(自身を含む): 43525440

約数和(自身を除く): 22860032

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 101, 139, 184, 202, 278, 368, 404, 556, 736, 808, 1112, 1472, 1616, 2224, 2323, 3197, 3232, 4448, 4646, 6394, 6464, 8896, 9292, 12788, 14039, 18584, 25576, 28078, 37168, 51152, 56156, 74336, 102304, 112312, 148672, 204608, 224624, 322897, 449248, 645794, 898496, 1291588, 2583176, 5166352, 10332704, 20665408]

約数ペア:

[(1, 20665408), (2, 10332704), (4, 5166352), (8, 2583176), (16, 1291588), (23, 898496), (32, 645794), (46, 449248), (64, 322897), (92, 224624), (101, 204608), (139, 148672), (184, 112312), (202, 102304), (278, 74336), (368, 56156), (404, 51152), (556, 37168), (736, 28078), (808, 25576), (1112, 18584), (1472, 14039), (1616, 12788), (2224, 9292), (2323, 8896), (3197, 6464), (3232, 6394), (4448, 4646)]