181598980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 387265536

約数和(自身を除く): 205666556

約数列:

[1, 2, 4, 5, 10, 20, 137, 191, 274, 347, 382, 548, 685, 694, 764, 955, 1370, 1388, 1735, 1910, 2740, 3470, 3820, 6940, 26167, 47539, 52334, 66277, 95078, 104668, 130835, 132554, 190156, 237695, 261670, 265108, 331385, 475390, 523340, 662770, 950780, 1325540, 9079949, 18159898, 36319796, 45399745, 90799490, 181598980]

約数ペア:

[(1, 181598980), (2, 90799490), (4, 45399745), (5, 36319796), (10, 18159898), (20, 9079949), (137, 1325540), (191, 950780), (274, 662770), (347, 523340), (382, 475390), (548, 331385), (685, 265108), (694, 261670), (764, 237695), (955, 190156), (1370, 132554), (1388, 130835), (1735, 104668), (1910, 95078), (2740, 66277), (3470, 52334), (3820, 47539), (6940, 26167)]