20512887752

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{1933}}^1$

素因数の和:2191

約数の個数: 128

約数和(自身を含む): 47522557440

約数和(自身を除く): 27009669688

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 71, 119, 136, 142, 157, 238, 284, 314, 476, 497, 568, 628, 952, 994, 1099, 1207, 1256, 1933, 1988, 2198, 2414, 2669, 3866, 3976, 4396, 4828, 5338, 7732, 8449, 8792, 9656, 10676, 11147, 13531, 15464, 16898, 18683, 21352, 22294, 27062, 32861, 33796, 37366, 44588, 54124, 65722, 67592, 74732, 78029, 89176, 108248, 131444, 137243, 149464, 156058, 189499, 230027, 262888, 274486, 303481, 312116, 378998, 460054, 548972, 606962, 624232, 757996, 920108, 960701, 1097944, 1213924, 1326493, 1515992, 1840216, 1921402, 2124367, 2333131, 2427848, 2652986, 3842804, 4248734, 4666262, 5159177, 5305972, 7685608, 8497468, 9332524, 10318354, 10611944, 16331917, 16994936, 18665048, 20636708, 21547151, 32663834, 36114239, 41273416, 43094302, 65327668, 72228478, 86188604, 130655336, 144456956, 150830057, 172377208, 288913912, 301660114, 366301567, 603320228, 732603134, 1206640456, 1465206268, 2564110969, 2930412536, 5128221938, 10256443876, 20512887752]

約数ペア:

[(1, 20512887752), (2, 10256443876), (4, 5128221938), (7, 2930412536), (8, 2564110969), (14, 1465206268), (17, 1206640456), (28, 732603134), (34, 603320228), (56, 366301567), (68, 301660114), (71, 288913912), (119, 172377208), (136, 150830057), (142, 144456956), (157, 130655336), (238, 86188604), (284, 72228478), (314, 65327668), (476, 43094302), (497, 41273416), (568, 36114239), (628, 32663834), (952, 21547151), (994, 20636708), (1099, 18665048), (1207, 16994936), (1256, 16331917), (1933, 10611944), (1988, 10318354), (2198, 9332524), (2414, 8497468), (2669, 7685608), (3866, 5305972), (3976, 5159177), (4396, 4666262), (4828, 4248734), (5338, 3842804), (7732, 2652986), (8449, 2427848), (8792, 2333131), (9656, 2124367), (10676, 1921402), (11147, 1840216), (13531, 1515992), (15464, 1326493), (16898, 1213924), (18683, 1097944), (21352, 960701), (22294, 920108), (27062, 757996), (32861, 624232), (33796, 606962), (37366, 548972), (44588, 460054), (54124, 378998), (65722, 312116), (67592, 303481), (74732, 274486), (78029, 262888), (89176, 230027), (108248, 189499), (131444, 156058), (137243, 149464)]