90120212

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 199956456

約数和(自身を除く): 109836244

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 113, 182, 196, 226, 313, 364, 452, 626, 637, 791, 1252, 1274, 1469, 1582, 2191, 2548, 2938, 3164, 4069, 4382, 5537, 5876, 8138, 8764, 10283, 11074, 15337, 16276, 20566, 22148, 28483, 30674, 35369, 41132, 56966, 61348, 70738, 71981, 113932, 141476, 143962, 199381, 247583, 287924, 398762, 459797, 495166, 797524, 919594, 990332, 1733081, 1839188, 3218579, 3466162, 6437158, 6932324, 12874316, 22530053, 45060106, 90120212]

約数ペア:

[(1, 90120212), (2, 45060106), (4, 22530053), (7, 12874316), (13, 6932324), (14, 6437158), (26, 3466162), (28, 3218579), (49, 1839188), (52, 1733081), (91, 990332), (98, 919594), (113, 797524), (182, 495166), (196, 459797), (226, 398762), (313, 287924), (364, 247583), (452, 199381), (626, 143962), (637, 141476), (791, 113932), (1252, 71981), (1274, 70738), (1469, 61348), (1582, 56966), (2191, 41132), (2548, 35369), (2938, 30674), (3164, 28483), (4069, 22148), (4382, 20566), (5537, 16276), (5876, 15337), (8138, 11074), (8764, 10283)]