20531720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46663}}^1$

素因数の和:46685

約数の個数: 32

約数和(自身を含む): 50397120

約数和(自身を除く): 29865400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46663, 93326, 186652, 233315, 373304, 466630, 513293, 933260, 1026586, 1866520, 2053172, 2566465, 4106344, 5132930, 10265860, 20531720]

約数ペア:

[(1, 20531720), (2, 10265860), (4, 5132930), (5, 4106344), (8, 2566465), (10, 2053172), (11, 1866520), (20, 1026586), (22, 933260), (40, 513293), (44, 466630), (55, 373304), (88, 233315), (110, 186652), (220, 93326), (440, 46663)]