20176975588

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{39157}}^1$

素因数の和:39425

約数の個数: 72

約数和(自身を含む): 44997240960

約数和(自身を除く): 24820265372

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 239, 308, 478, 539, 956, 1078, 1673, 2156, 2629, 3346, 5258, 6692, 10516, 11711, 18403, 23422, 36806, 39157, 46844, 73612, 78314, 128821, 156628, 257642, 274099, 430727, 515284, 548198, 861454, 1096396, 1722908, 1918693, 3015089, 3837386, 6030178, 7674772, 9358523, 12060356, 18717046, 21105623, 37434092, 42211246, 65509661, 84422492, 102943753, 131019322, 205887506, 262038644, 411775012, 458567627, 720606271, 917135254, 1441212542, 1834270508, 2882425084, 5044243897, 10088487794, 20176975588]

約数ペア:

[(1, 20176975588), (2, 10088487794), (4, 5044243897), (7, 2882425084), (11, 1834270508), (14, 1441212542), (22, 917135254), (28, 720606271), (44, 458567627), (49, 411775012), (77, 262038644), (98, 205887506), (154, 131019322), (196, 102943753), (239, 84422492), (308, 65509661), (478, 42211246), (539, 37434092), (956, 21105623), (1078, 18717046), (1673, 12060356), (2156, 9358523), (2629, 7674772), (3346, 6030178), (5258, 3837386), (6692, 3015089), (10516, 1918693), (11711, 1722908), (18403, 1096396), (23422, 861454), (36806, 548198), (39157, 515284), (46844, 430727), (73612, 274099), (78314, 257642), (128821, 156628)]