1680454840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{4561}}^1$

素因数の和:4784

約数の個数: 64

約数和(自身を含む): 3869305920

約数和(自身を除く): 2188851080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 151, 244, 302, 305, 488, 604, 610, 755, 1208, 1220, 1510, 2440, 3020, 4561, 6040, 9122, 9211, 18244, 18422, 22805, 36488, 36844, 45610, 46055, 73688, 91220, 92110, 182440, 184220, 278221, 368440, 556442, 688711, 1112884, 1377422, 1391105, 2225768, 2754844, 2782210, 3443555, 5509688, 5564420, 6887110, 11128840, 13774220, 27548440, 42011371, 84022742, 168045484, 210056855, 336090968, 420113710, 840227420, 1680454840]

約数ペア:

[(1, 1680454840), (2, 840227420), (4, 420113710), (5, 336090968), (8, 210056855), (10, 168045484), (20, 84022742), (40, 42011371), (61, 27548440), (122, 13774220), (151, 11128840), (244, 6887110), (302, 5564420), (305, 5509688), (488, 3443555), (604, 2782210), (610, 2754844), (755, 2225768), (1208, 1391105), (1220, 1377422), (1510, 1112884), (2440, 688711), (3020, 556442), (4561, 368440), (6040, 278221), (9122, 184220), (9211, 182440), (18244, 92110), (18422, 91220), (22805, 73688), (36488, 46055), (36844, 45610)]