20992740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3607}}^1$

素因数の和:3716

約数の個数: 48

約数和(自身を含む): 59402112

約数和(自身を除く): 38409372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3607, 5820, 7214, 10821, 14428, 18035, 21642, 36070, 43284, 54105, 72140, 108210, 216420, 349879, 699758, 1049637, 1399516, 1749395, 2099274, 3498790, 4198548, 5248185, 6997580, 10496370, 20992740]

約数ペア:

[(1, 20992740), (2, 10496370), (3, 6997580), (4, 5248185), (5, 4198548), (6, 3498790), (10, 2099274), (12, 1749395), (15, 1399516), (20, 1049637), (30, 699758), (60, 349879), (97, 216420), (194, 108210), (291, 72140), (388, 54105), (485, 43284), (582, 36070), (970, 21642), (1164, 18035), (1455, 14428), (1940, 10821), (2910, 7214), (3607, 5820)]