20178026308

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{10709}}^1$

素因数の和:10981

約数の個数: 72

約数和(自身を含む): 41279981400

約数和(自身を除く): 21101955092

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 229, 242, 374, 458, 484, 748, 916, 2057, 2519, 3893, 4114, 5038, 7786, 8228, 10076, 10709, 15572, 21418, 27709, 42823, 42836, 55418, 85646, 110836, 117799, 171292, 182053, 235598, 364106, 471053, 471196, 728212, 942106, 1295789, 1884212, 2002583, 2452361, 2591578, 4005166, 4904722, 5183156, 8010332, 9809444, 22028413, 26975971, 41690137, 44056826, 53951942, 83380274, 88113652, 107903884, 166760548, 296735681, 458591507, 593471362, 917183014, 1186942724, 1834366028, 5044506577, 10089013154, 20178026308]

約数ペア:

[(1, 20178026308), (2, 10089013154), (4, 5044506577), (11, 1834366028), (17, 1186942724), (22, 917183014), (34, 593471362), (44, 458591507), (68, 296735681), (121, 166760548), (187, 107903884), (229, 88113652), (242, 83380274), (374, 53951942), (458, 44056826), (484, 41690137), (748, 26975971), (916, 22028413), (2057, 9809444), (2519, 8010332), (3893, 5183156), (4114, 4904722), (5038, 4005166), (7786, 2591578), (8228, 2452361), (10076, 2002583), (10709, 1884212), (15572, 1295789), (21418, 942106), (27709, 728212), (42823, 471196), (42836, 471053), (55418, 364106), (85646, 235598), (110836, 182053), (117799, 171292)]