18443480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 27279400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 167, 220, 251, 334, 440, 502, 668, 835, 1004, 1255, 1336, 1670, 1837, 2008, 2510, 2761, 3340, 3674, 5020, 5522, 6680, 7348, 9185, 10040, 11044, 13805, 14696, 18370, 22088, 27610, 36740, 41917, 55220, 73480, 83834, 110440, 167668, 209585, 335336, 419170, 461087, 838340, 922174, 1676680, 1844348, 2305435, 3688696, 4610870, 9221740, 18443480]

約数ペア:

[(1, 18443480), (2, 9221740), (4, 4610870), (5, 3688696), (8, 2305435), (10, 1844348), (11, 1676680), (20, 922174), (22, 838340), (40, 461087), (44, 419170), (55, 335336), (88, 209585), (110, 167668), (167, 110440), (220, 83834), (251, 73480), (334, 55220), (440, 41917), (502, 36740), (668, 27610), (835, 22088), (1004, 18370), (1255, 14696), (1336, 13805), (1670, 11044), (1837, 10040), (2008, 9185), (2510, 7348), (2761, 6680), (3340, 5522), (3674, 5020)]