20121448305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{1187}}^1$

素因数の和:1543

約数の個数: 128

約数和(自身を含む): 40236134400

約数和(自身を除く): 20114686095

約数列:

[1, 3, 5, 7, 15, 19, 21, 29, 35, 57, 87, 95, 105, 133, 145, 203, 285, 293, 399, 435, 551, 609, 665, 879, 1015, 1187, 1465, 1653, 1995, 2051, 2755, 3045, 3561, 3857, 4395, 5567, 5935, 6153, 8265, 8309, 8497, 10255, 11571, 16701, 17805, 19285, 22553, 24927, 25491, 27835, 30765, 34423, 38969, 41545, 42485, 57855, 59479, 67659, 83505, 103269, 112765, 116907, 124635, 127455, 157871, 161443, 172115, 178437, 194845, 240961, 297395, 338295, 347791, 473613, 484329, 516345, 584535, 654037, 722883, 789355, 807215, 892185, 1043373, 1130101, 1204805, 1738955, 1962111, 2368065, 2421645, 2434537, 3270185, 3390303, 3614415, 4578259, 5216865, 5650505, 6608029, 7303611, 9810555, 10085939, 12172685, 13734777, 16951515, 19824087, 22891295, 30257817, 33040145, 36518055, 46256203, 50429695, 68673885, 70601573, 99120435, 138768609, 151289085, 191632841, 211804719, 231281015, 353007865, 574898523, 693843045, 958164205, 1059023595, 1341429887, 2874492615, 4024289661, 6707149435, 20121448305]

約数ペア:

[(1, 20121448305), (3, 6707149435), (5, 4024289661), (7, 2874492615), (15, 1341429887), (19, 1059023595), (21, 958164205), (29, 693843045), (35, 574898523), (57, 353007865), (87, 231281015), (95, 211804719), (105, 191632841), (133, 151289085), (145, 138768609), (203, 99120435), (285, 70601573), (293, 68673885), (399, 50429695), (435, 46256203), (551, 36518055), (609, 33040145), (665, 30257817), (879, 22891295), (1015, 19824087), (1187, 16951515), (1465, 13734777), (1653, 12172685), (1995, 10085939), (2051, 9810555), (2755, 7303611), (3045, 6608029), (3561, 5650505), (3857, 5216865), (4395, 4578259), (5567, 3614415), (5935, 3390303), (6153, 3270185), (8265, 2434537), (8309, 2421645), (8497, 2368065), (10255, 1962111), (11571, 1738955), (16701, 1204805), (17805, 1130101), (19285, 1043373), (22553, 892185), (24927, 807215), (25491, 789355), (27835, 722883), (30765, 654037), (34423, 584535), (38969, 516345), (41545, 484329), (42485, 473613), (57855, 347791), (59479, 338295), (67659, 297395), (83505, 240961), (103269, 194845), (112765, 178437), (116907, 172115), (124635, 161443), (127455, 157871)]