20318996972

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{14783}}^1$

素因数の和:14891

約数の個数: 72

約数和(自身を含む): 40031228160

約数和(自身を除く): 19712231188

約数列:

[1, 2, 4, 17, 29, 34, 41, 58, 68, 82, 116, 164, 289, 493, 578, 697, 986, 1156, 1189, 1394, 1972, 2378, 2788, 4756, 8381, 11849, 14783, 16762, 20213, 23698, 29566, 33524, 40426, 47396, 59132, 80852, 251311, 343621, 428707, 502622, 606103, 687242, 857414, 1005244, 1212206, 1374484, 1714828, 2424412, 4272287, 7288019, 8544574, 10303751, 14576038, 17089148, 17576987, 20607502, 29152076, 35153974, 41215004, 70307948, 123896323, 175163767, 247792646, 298808779, 350327534, 495585292, 597617558, 700655068, 1195235116, 5079749243, 10159498486, 20318996972]

約数ペア:

[(1, 20318996972), (2, 10159498486), (4, 5079749243), (17, 1195235116), (29, 700655068), (34, 597617558), (41, 495585292), (58, 350327534), (68, 298808779), (82, 247792646), (116, 175163767), (164, 123896323), (289, 70307948), (493, 41215004), (578, 35153974), (697, 29152076), (986, 20607502), (1156, 17576987), (1189, 17089148), (1394, 14576038), (1972, 10303751), (2378, 8544574), (2788, 7288019), (4756, 4272287), (8381, 2424412), (11849, 1714828), (14783, 1374484), (16762, 1212206), (20213, 1005244), (23698, 857414), (29566, 687242), (33524, 606103), (40426, 502622), (47396, 428707), (59132, 343621), (80852, 251311)]