2019540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 5729472

約数和(自身を除く): 3709932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 347, 388, 485, 582, 694, 970, 1041, 1164, 1388, 1455, 1735, 1940, 2082, 2910, 3470, 4164, 5205, 5820, 6940, 10410, 20820, 33659, 67318, 100977, 134636, 168295, 201954, 336590, 403908, 504885, 673180, 1009770, 2019540]

約数ペア:

[(1, 2019540), (2, 1009770), (3, 673180), (4, 504885), (5, 403908), (6, 336590), (10, 201954), (12, 168295), (15, 134636), (20, 100977), (30, 67318), (60, 33659), (97, 20820), (194, 10410), (291, 6940), (347, 5820), (388, 5205), (485, 4164), (582, 3470), (694, 2910), (970, 2082), (1041, 1940), (1164, 1735), (1388, 1455)]