20355500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3701}}^1$

素因数の和:3731

約数の個数: 48

約数和(自身を含む): 48511008

約数和(自身を除く): 28155508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3701, 5500, 7402, 14804, 18505, 37010, 40711, 74020, 81422, 92525, 162844, 185050, 203555, 370100, 407110, 462625, 814220, 925250, 1017775, 1850500, 2035550, 4071100, 5088875, 10177750, 20355500]

約数ペア:

[(1, 20355500), (2, 10177750), (4, 5088875), (5, 4071100), (10, 2035550), (11, 1850500), (20, 1017775), (22, 925250), (25, 814220), (44, 462625), (50, 407110), (55, 370100), (100, 203555), (110, 185050), (125, 162844), (220, 92525), (250, 81422), (275, 74020), (500, 40711), (550, 37010), (1100, 18505), (1375, 14804), (2750, 7402), (3701, 5500)]