123161720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{279913}}^1$

素因数の和:279935

約数の個数: 32

約数和(自身を含む): 302307120

約数和(自身を除く): 179145400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 279913, 559826, 1119652, 1399565, 2239304, 2799130, 3079043, 5598260, 6158086, 11196520, 12316172, 15395215, 24632344, 30790430, 61580860, 123161720]

約数ペア:

[(1, 123161720), (2, 61580860), (4, 30790430), (5, 24632344), (8, 15395215), (10, 12316172), (11, 11196520), (20, 6158086), (22, 5598260), (40, 3079043), (44, 2799130), (55, 2239304), (88, 1399565), (110, 1119652), (220, 559826), (440, 279913)]