203207560

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{12421}}^1$

素因数の和:12841

約数の個数: 32

約数和(自身を含む): 458371800

約数和(自身を除く): 255164240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 12421, 16360, 24842, 49684, 62105, 99368, 124210, 248420, 496840, 5080189, 10160378, 20320756, 25400945, 40641512, 50801890, 101603780, 203207560]

約数ペア:

[(1, 203207560), (2, 101603780), (4, 50801890), (5, 40641512), (8, 25400945), (10, 20320756), (20, 10160378), (40, 5080189), (409, 496840), (818, 248420), (1636, 124210), (2045, 99368), (3272, 62105), (4090, 49684), (8180, 24842), (12421, 16360)]