20747638728

素因数分解:

$2^3\times 3^4\times {\mathrm{331}}^1\times {\mathrm{96731}}^1$

素因数の和:97080

約数の個数: 80

約数和(自身を含む): 58288768560

約数和(自身を除く): 37541129832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 331, 648, 662, 993, 1324, 1986, 2648, 2979, 3972, 5958, 7944, 8937, 11916, 17874, 23832, 26811, 35748, 53622, 71496, 96731, 107244, 193462, 214488, 290193, 386924, 580386, 773848, 870579, 1160772, 1741158, 2321544, 2611737, 3482316, 5223474, 6964632, 7835211, 10446948, 15670422, 20893896, 31340844, 32017961, 62681688, 64035922, 96053883, 128071844, 192107766, 256143688, 288161649, 384215532, 576323298, 768431064, 864484947, 1152646596, 1728969894, 2305293192, 2593454841, 3457939788, 5186909682, 6915879576, 10373819364, 20747638728]

約数ペア:

[(1, 20747638728), (2, 10373819364), (3, 6915879576), (4, 5186909682), (6, 3457939788), (8, 2593454841), (9, 2305293192), (12, 1728969894), (18, 1152646596), (24, 864484947), (27, 768431064), (36, 576323298), (54, 384215532), (72, 288161649), (81, 256143688), (108, 192107766), (162, 128071844), (216, 96053883), (324, 64035922), (331, 62681688), (648, 32017961), (662, 31340844), (993, 20893896), (1324, 15670422), (1986, 10446948), (2648, 7835211), (2979, 6964632), (3972, 5223474), (5958, 3482316), (7944, 2611737), (8937, 2321544), (11916, 1741158), (17874, 1160772), (23832, 870579), (26811, 773848), (35748, 580386), (53622, 386924), (71496, 290193), (96731, 214488), (107244, 193462)]