20808768472

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1\times {\mathrm{2683}}^1$

素因数の和:3464

約数の個数: 64

約数和(自身を含む): 41455560960

約数和(自身を除く): 20646792488

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 691, 1382, 1403, 2683, 2764, 2806, 5366, 5528, 5612, 10732, 11224, 15893, 21464, 31786, 42151, 61709, 63572, 84302, 123418, 127144, 163663, 168604, 246836, 327326, 337208, 493672, 654652, 969473, 1309304, 1853953, 1938946, 3707906, 3764249, 3877892, 7415812, 7528498, 7755784, 14831624, 15056996, 30113992, 42640919, 85281838, 113091133, 170563676, 226182266, 341127352, 452364532, 904729064, 2601096059, 5202192118, 10404384236, 20808768472]

約数ペア:

[(1, 20808768472), (2, 10404384236), (4, 5202192118), (8, 2601096059), (23, 904729064), (46, 452364532), (61, 341127352), (92, 226182266), (122, 170563676), (184, 113091133), (244, 85281838), (488, 42640919), (691, 30113992), (1382, 15056996), (1403, 14831624), (2683, 7755784), (2764, 7528498), (2806, 7415812), (5366, 3877892), (5528, 3764249), (5612, 3707906), (10732, 1938946), (11224, 1853953), (15893, 1309304), (21464, 969473), (31786, 654652), (42151, 493672), (61709, 337208), (63572, 327326), (84302, 246836), (123418, 168604), (127144, 163663)]