19639450

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{3889}}^1$

素因数の和:4002

約数の個数: 24

約数和(自身を含む): 36900540

約数和(自身を除く): 17261090

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 3889, 5050, 7778, 19445, 38890, 97225, 194450, 392789, 785578, 1963945, 3927890, 9819725, 19639450]

約数ペア:

[(1, 19639450), (2, 9819725), (5, 3927890), (10, 1963945), (25, 785578), (50, 392789), (101, 194450), (202, 97225), (505, 38890), (1010, 19445), (2525, 7778), (3889, 5050)]