289789900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3547}}^1$

素因数の和:3623

約数の個数: 72

約数和(自身を含む): 677526080

約数和(自身を除く): 387736180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 380, 430, 475, 817, 860, 950, 1075, 1634, 1900, 2150, 3268, 3547, 4085, 4300, 7094, 8170, 14188, 16340, 17735, 20425, 35470, 40850, 67393, 70940, 81700, 88675, 134786, 152521, 177350, 269572, 305042, 336965, 354700, 610084, 673930, 762605, 1347860, 1525210, 1684825, 2897899, 3050420, 3369650, 3813025, 5795798, 6739300, 7626050, 11591596, 14489495, 15252100, 28978990, 57957980, 72447475, 144894950, 289789900]

約数ペア:

[(1, 289789900), (2, 144894950), (4, 72447475), (5, 57957980), (10, 28978990), (19, 15252100), (20, 14489495), (25, 11591596), (38, 7626050), (43, 6739300), (50, 5795798), (76, 3813025), (86, 3369650), (95, 3050420), (100, 2897899), (172, 1684825), (190, 1525210), (215, 1347860), (380, 762605), (430, 673930), (475, 610084), (817, 354700), (860, 336965), (950, 305042), (1075, 269572), (1634, 177350), (1900, 152521), (2150, 134786), (3268, 88675), (3547, 81700), (4085, 70940), (4300, 67393), (7094, 40850), (8170, 35470), (14188, 20425), (16340, 17735)]