20886496

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 43273440

約数和(自身を除く): 22386944

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 71, 116, 142, 232, 284, 317, 464, 568, 634, 928, 1136, 1268, 2059, 2272, 2536, 4118, 5072, 8236, 9193, 10144, 16472, 18386, 22507, 32944, 36772, 45014, 65888, 73544, 90028, 147088, 180056, 294176, 360112, 652703, 720224, 1305406, 2610812, 5221624, 10443248, 20886496]

約数ペア:

[(1, 20886496), (2, 10443248), (4, 5221624), (8, 2610812), (16, 1305406), (29, 720224), (32, 652703), (58, 360112), (71, 294176), (116, 180056), (142, 147088), (232, 90028), (284, 73544), (317, 65888), (464, 45014), (568, 36772), (634, 32944), (928, 22507), (1136, 18386), (1268, 16472), (2059, 10144), (2272, 9193), (2536, 8236), (4118, 5072)]