28537880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101921}}^1$

素因数の和:101939

約数の個数: 32

約数和(自身を含む): 73383840

約数和(自身を除く): 44845960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101921, 203842, 407684, 509605, 713447, 815368, 1019210, 1426894, 2038420, 2853788, 3567235, 4076840, 5707576, 7134470, 14268940, 28537880]

約数ペア:

[(1, 28537880), (2, 14268940), (4, 7134470), (5, 5707576), (7, 4076840), (8, 3567235), (10, 2853788), (14, 2038420), (20, 1426894), (28, 1019210), (35, 815368), (40, 713447), (56, 509605), (70, 407684), (140, 203842), (280, 101921)]