20574568

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 47318400

約数和(自身を除く): 26743832

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 61, 76, 122, 133, 152, 244, 266, 317, 427, 488, 532, 634, 854, 1064, 1159, 1268, 1708, 2219, 2318, 2536, 3416, 4438, 4636, 6023, 8113, 8876, 9272, 12046, 16226, 17752, 19337, 24092, 32452, 38674, 42161, 48184, 64904, 77348, 84322, 135359, 154696, 168644, 270718, 337288, 367403, 541436, 734806, 1082872, 1469612, 2571821, 2939224, 5143642, 10287284, 20574568]

約数ペア:

[(1, 20574568), (2, 10287284), (4, 5143642), (7, 2939224), (8, 2571821), (14, 1469612), (19, 1082872), (28, 734806), (38, 541436), (56, 367403), (61, 337288), (76, 270718), (122, 168644), (133, 154696), (152, 135359), (244, 84322), (266, 77348), (317, 64904), (427, 48184), (488, 42161), (532, 38674), (634, 32452), (854, 24092), (1064, 19337), (1159, 17752), (1268, 16226), (1708, 12046), (2219, 9272), (2318, 8876), (2536, 8113), (3416, 6023), (4438, 4636)]