80437900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{853}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 186800544

約数和(自身を除く): 106362644

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 41, 46, 50, 82, 92, 100, 115, 164, 205, 230, 410, 460, 575, 820, 853, 943, 1025, 1150, 1706, 1886, 2050, 2300, 3412, 3772, 4100, 4265, 4715, 8530, 9430, 17060, 18860, 19619, 21325, 23575, 34973, 39238, 42650, 47150, 69946, 78476, 85300, 94300, 98095, 139892, 174865, 196190, 349730, 392380, 490475, 699460, 804379, 874325, 980950, 1608758, 1748650, 1961900, 3217516, 3497300, 4021895, 8043790, 16087580, 20109475, 40218950, 80437900]

約数ペア:

[(1, 80437900), (2, 40218950), (4, 20109475), (5, 16087580), (10, 8043790), (20, 4021895), (23, 3497300), (25, 3217516), (41, 1961900), (46, 1748650), (50, 1608758), (82, 980950), (92, 874325), (100, 804379), (115, 699460), (164, 490475), (205, 392380), (230, 349730), (410, 196190), (460, 174865), (575, 139892), (820, 98095), (853, 94300), (943, 85300), (1025, 78476), (1150, 69946), (1706, 47150), (1886, 42650), (2050, 39238), (2300, 34973), (3412, 23575), (3772, 21325), (4100, 19619), (4265, 18860), (4715, 17060), (8530, 9430)]