20785989104

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{4231}}^1\times {\mathrm{7489}}^1$

素因数の和:11769

約数の個数: 40

約数和(自身を含む): 41270379360

約数和(自身を除く): 20484390256

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 4231, 7489, 8462, 14978, 16924, 29956, 33848, 59912, 67696, 119824, 173471, 307049, 346942, 614098, 693884, 1228196, 1387768, 2456392, 2775536, 4912784, 31685959, 63371918, 126743836, 253487672, 506975344, 1299124319, 2598248638, 5196497276, 10392994552, 20785989104]

約数ペア:

[(1, 20785989104), (2, 10392994552), (4, 5196497276), (8, 2598248638), (16, 1299124319), (41, 506975344), (82, 253487672), (164, 126743836), (328, 63371918), (656, 31685959), (4231, 4912784), (7489, 2775536), (8462, 2456392), (14978, 1387768), (16924, 1228196), (29956, 693884), (33848, 614098), (59912, 346942), (67696, 307049), (119824, 173471)]