687940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 1632960

約数和(自身を除く): 945020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 59, 106, 110, 118, 212, 220, 236, 265, 295, 530, 583, 590, 649, 1060, 1166, 1180, 1298, 2332, 2596, 2915, 3127, 3245, 5830, 6254, 6490, 11660, 12508, 12980, 15635, 31270, 34397, 62540, 68794, 137588, 171985, 343970, 687940]

約数ペア:

[(1, 687940), (2, 343970), (4, 171985), (5, 137588), (10, 68794), (11, 62540), (20, 34397), (22, 31270), (44, 15635), (53, 12980), (55, 12508), (59, 11660), (106, 6490), (110, 6254), (118, 5830), (212, 3245), (220, 3127), (236, 2915), (265, 2596), (295, 2332), (530, 1298), (583, 1180), (590, 1166), (649, 1060)]