1900821700

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{1543}}^1$

素因数の和:1781

約数の個数: 72

約数和(自身を含む): 4202842112

約数和(自身を除く): 2302020412

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 127, 194, 254, 388, 485, 508, 635, 970, 1270, 1543, 1940, 2425, 2540, 3086, 3175, 4850, 6172, 6350, 7715, 9700, 12319, 12700, 15430, 24638, 30860, 38575, 49276, 61595, 77150, 123190, 149671, 154300, 195961, 246380, 299342, 307975, 391922, 598684, 615950, 748355, 783844, 979805, 1231900, 1496710, 1959610, 2993420, 3741775, 3919220, 4899025, 7483550, 9798050, 14967100, 19008217, 19596100, 38016434, 76032868, 95041085, 190082170, 380164340, 475205425, 950410850, 1900821700]

約数ペア:

[(1, 1900821700), (2, 950410850), (4, 475205425), (5, 380164340), (10, 190082170), (20, 95041085), (25, 76032868), (50, 38016434), (97, 19596100), (100, 19008217), (127, 14967100), (194, 9798050), (254, 7483550), (388, 4899025), (485, 3919220), (508, 3741775), (635, 2993420), (970, 1959610), (1270, 1496710), (1543, 1231900), (1940, 979805), (2425, 783844), (2540, 748355), (3086, 615950), (3175, 598684), (4850, 391922), (6172, 307975), (6350, 299342), (7715, 246380), (9700, 195961), (12319, 154300), (12700, 149671), (15430, 123190), (24638, 77150), (30860, 61595), (38575, 49276)]