172111720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{391163}}^1$

素因数の和:391185

約数の個数: 32

約数和(自身を含む): 422457120

約数和(自身を除く): 250345400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 391163, 782326, 1564652, 1955815, 3129304, 3911630, 4302793, 7823260, 8605586, 15646520, 17211172, 21513965, 34422344, 43027930, 86055860, 172111720]

約数ペア:

[(1, 172111720), (2, 86055860), (4, 43027930), (5, 34422344), (8, 21513965), (10, 17211172), (11, 15646520), (20, 8605586), (22, 7823260), (40, 4302793), (44, 3911630), (55, 3129304), (88, 1955815), (110, 1564652), (220, 782326), (440, 391163)]