109697480

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13921}}^1$

素因数の和:14129

約数の個数: 32

約数和(自身を含む): 248090040

約数和(自身を除く): 138392560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 13921, 27842, 55684, 69605, 111368, 139210, 278420, 556840, 2742437, 5484874, 10969748, 13712185, 21939496, 27424370, 54848740, 109697480]

約数ペア:

[(1, 109697480), (2, 54848740), (4, 27424370), (5, 21939496), (8, 13712185), (10, 10969748), (20, 5484874), (40, 2742437), (197, 556840), (394, 278420), (788, 139210), (985, 111368), (1576, 69605), (1970, 55684), (3940, 27842), (7880, 13921)]