79884400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4930

約数の個数: 60

約数和(自身を含む): 196643664

約数和(自身を除く): 116759264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 2050, 3280, 4100, 4871, 8200, 9742, 16400, 19484, 24355, 38968, 48710, 77936, 97420, 121775, 194840, 199711, 243550, 389680, 399422, 487100, 798844, 974200, 998555, 1597688, 1948400, 1997110, 3195376, 3994220, 4992775, 7988440, 9985550, 15976880, 19971100, 39942200, 79884400]

約数ペア:

[(1, 79884400), (2, 39942200), (4, 19971100), (5, 15976880), (8, 9985550), (10, 7988440), (16, 4992775), (20, 3994220), (25, 3195376), (40, 1997110), (41, 1948400), (50, 1597688), (80, 998555), (82, 974200), (100, 798844), (164, 487100), (200, 399422), (205, 389680), (328, 243550), (400, 199711), (410, 194840), (656, 121775), (820, 97420), (1025, 77936), (1640, 48710), (2050, 38968), (3280, 24355), (4100, 19484), (4871, 16400), (8200, 9742)]