268647560

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{16421}}^1$

素因数の和:16841

約数の個数: 32

約数和(自身を含む): 605971800

約数和(自身を除く): 337324240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 16360, 16421, 32842, 65684, 82105, 131368, 164210, 328420, 656840, 6716189, 13432378, 26864756, 33580945, 53729512, 67161890, 134323780, 268647560]

約数ペア:

[(1, 268647560), (2, 134323780), (4, 67161890), (5, 53729512), (8, 33580945), (10, 26864756), (20, 13432378), (40, 6716189), (409, 656840), (818, 328420), (1636, 164210), (2045, 131368), (3272, 82105), (4090, 65684), (8180, 32842), (16360, 16421)]