15704840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1993}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 35533080

約数和(自身を除く): 19828240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 1993, 3940, 3986, 7880, 7972, 9965, 15944, 19930, 39860, 79720, 392621, 785242, 1570484, 1963105, 3140968, 3926210, 7852420, 15704840]

約数ペア:

[(1, 15704840), (2, 7852420), (4, 3926210), (5, 3140968), (8, 1963105), (10, 1570484), (20, 785242), (40, 392621), (197, 79720), (394, 39860), (788, 19930), (985, 15944), (1576, 9965), (1970, 7972), (1993, 7880), (3940, 3986)]