20797876220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2198507}}^1$

素因数の和:2198570

約数の個数: 48

約数和(自身を含む): 48754113408

約数和(自身を除く): 27956237188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 2198507, 4397014, 8794028, 10992535, 21985070, 24183577, 43970140, 48367154, 94535801, 96734308, 120917885, 189071602, 241835770, 378143204, 472679005, 483671540, 945358010, 1039893811, 1890716020, 2079787622, 4159575244, 5199469055, 10398938110, 20797876220]

約数ペア:

[(1, 20797876220), (2, 10398938110), (4, 5199469055), (5, 4159575244), (10, 2079787622), (11, 1890716020), (20, 1039893811), (22, 945358010), (43, 483671540), (44, 472679005), (55, 378143204), (86, 241835770), (110, 189071602), (172, 120917885), (215, 96734308), (220, 94535801), (430, 48367154), (473, 43970140), (860, 24183577), (946, 21985070), (1892, 10992535), (2365, 8794028), (4730, 4397014), (9460, 2198507)]