28141204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:369

約数の個数: 72

約数和(自身を含む): 64357440

約数和(自身を除く): 36216236

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 169, 182, 247, 266, 313, 338, 364, 494, 532, 626, 676, 988, 1183, 1252, 1729, 2191, 2366, 3211, 3458, 4069, 4382, 4732, 5947, 6422, 6916, 8138, 8764, 11894, 12844, 16276, 22477, 23788, 28483, 41629, 44954, 52897, 56966, 77311, 83258, 89908, 105794, 113932, 154622, 166516, 211588, 309244, 370279, 541177, 740558, 1005043, 1082354, 1481116, 2010086, 2164708, 4020172, 7035301, 14070602, 28141204]

約数ペア:

[(1, 28141204), (2, 14070602), (4, 7035301), (7, 4020172), (13, 2164708), (14, 2010086), (19, 1481116), (26, 1082354), (28, 1005043), (38, 740558), (52, 541177), (76, 370279), (91, 309244), (133, 211588), (169, 166516), (182, 154622), (247, 113932), (266, 105794), (313, 89908), (338, 83258), (364, 77311), (494, 56966), (532, 52897), (626, 44954), (676, 41629), (988, 28483), (1183, 23788), (1252, 22477), (1729, 16276), (2191, 12844), (2366, 11894), (3211, 8764), (3458, 8138), (4069, 6916), (4382, 6422), (4732, 5947)]