79967960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2447}}^1$

素因数の和:2520

約数の個数: 64

約数和(自身を含む): 193881600

約数和(自身を除く): 113913640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2447, 3268, 4085, 4894, 6536, 8170, 9788, 12235, 16340, 19576, 24470, 32680, 46493, 48940, 92986, 97880, 105221, 185972, 210442, 232465, 371944, 420884, 464930, 526105, 841768, 929860, 1052210, 1859720, 1999199, 2104420, 3998398, 4208840, 7996796, 9995995, 15993592, 19991990, 39983980, 79967960]

約数ペア:

[(1, 79967960), (2, 39983980), (4, 19991990), (5, 15993592), (8, 9995995), (10, 7996796), (19, 4208840), (20, 3998398), (38, 2104420), (40, 1999199), (43, 1859720), (76, 1052210), (86, 929860), (95, 841768), (152, 526105), (172, 464930), (190, 420884), (215, 371944), (344, 232465), (380, 210442), (430, 185972), (760, 105221), (817, 97880), (860, 92986), (1634, 48940), (1720, 46493), (2447, 32680), (3268, 24470), (4085, 19576), (4894, 16340), (6536, 12235), (8170, 9788)]