320008280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{195127}}^1$

素因数の和:195179

約数の個数: 32

約数和(自身を含む): 737583840

約数和(自身を除く): 417575560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 195127, 390254, 780508, 975635, 1561016, 1951270, 3902540, 7805080, 8000207, 16000414, 32000828, 40001035, 64001656, 80002070, 160004140, 320008280]

約数ペア:

[(1, 320008280), (2, 160004140), (4, 80002070), (5, 64001656), (8, 40001035), (10, 32000828), (20, 16000414), (40, 8000207), (41, 7805080), (82, 3902540), (164, 1951270), (205, 1561016), (328, 975635), (410, 780508), (820, 390254), (1640, 195127)]