278325880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{673}}^1$

素因数の和:909

約数の個数: 96

約数和(自身を含む): 733015440

約数和(自身を除く): 454689560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 211, 245, 280, 392, 422, 490, 673, 844, 980, 1055, 1346, 1477, 1688, 1960, 2110, 2692, 2954, 3365, 4220, 4711, 5384, 5908, 6730, 7385, 8440, 9422, 10339, 11816, 13460, 14770, 18844, 20678, 23555, 26920, 29540, 32977, 37688, 41356, 47110, 51695, 59080, 65954, 82712, 94220, 103390, 131908, 142003, 164885, 188440, 206780, 263816, 284006, 329770, 413560, 568012, 659540, 710015, 994021, 1136024, 1319080, 1420030, 1988042, 2840060, 3976084, 4970105, 5680120, 6958147, 7952168, 9940210, 13916294, 19880420, 27832588, 34790735, 39760840, 55665176, 69581470, 139162940, 278325880]

約数ペア:

[(1, 278325880), (2, 139162940), (4, 69581470), (5, 55665176), (7, 39760840), (8, 34790735), (10, 27832588), (14, 19880420), (20, 13916294), (28, 9940210), (35, 7952168), (40, 6958147), (49, 5680120), (56, 4970105), (70, 3976084), (98, 2840060), (140, 1988042), (196, 1420030), (211, 1319080), (245, 1136024), (280, 994021), (392, 710015), (422, 659540), (490, 568012), (673, 413560), (844, 329770), (980, 284006), (1055, 263816), (1346, 206780), (1477, 188440), (1688, 164885), (1960, 142003), (2110, 131908), (2692, 103390), (2954, 94220), (3365, 82712), (4220, 65954), (4711, 59080), (5384, 51695), (5908, 47110), (6730, 41356), (7385, 37688), (8440, 32977), (9422, 29540), (10339, 26920), (11816, 23555), (13460, 20678), (14770, 18844)]